Handleless Eccentric Cam Ascenders
Hand Ascenders

This section includes mechanical ascenders consisting of a shell or frame and an eccentric cam assembly attached to the shell/frame at a single pivot point. The shell/frame is open on one side to allow admittance of the standing rope. No sling attachment points are provided on the cam. No handle is provided.

I split the Handleless Eccentric Cam Ascenders into these three groups:

• Hand Ascenders, for general use
• Chest Ascenders, specialized for Frog climbers
• Emergency Ascenders, small ascenders for emergency and specialized use.

These ascenders are generally smaller and lighter than the handled eccentric cam ascenders; conversely, they are more difficult to manipulate, particularly with gloved hands.

The most common hand eccentric cam ascenders have stamped shells, but several manufacturers mill their shells from extruded aluminum alloy. The extruded shells are generally heavier, but far more rugged.

[ More about Eccentric Cam Ascenders | Eccentric Cam Classification ]

Image	ID	Device ↓	Description	Acquired	Weight ↓	Height ↓	Width ↓	Thickness ↓	Std. volume ↓	Channel Diameter ↓	Cam Angle ↓	Tooth Pattern ↓
	2079	Anthron AB-20, Version A	RH, stamped frame, oval & round top holes, slotted & round lower holes, braced cam /w sloping teeth & side mud grooves, pin safety below cam	Bob Thrun Collection, 2017	148	105	79	34	279	15.0	24	(3.2)^2(1.2)^2(B)
	3558	Anthron AB-20, Version B	RH, stamped frame, oval & small round top holes, slotted & round lower holes, braced cam /w sloping teeth & side mud grooves, pin safety below cam	Erin Macher, 2022	146	105	75	32	253	15.0	24	(3.2)^2(1.2)^2(B)
	3476	Camnal Ascension	RH, stamped frame, oval top and D bottom hole, stamped cam stop,, drooped cam /w sloping teeth, plastic safety below cam	Bosity, 2021	133	110	70	26	200	14.1	29	(3.4)(1S1.2S2)^2(1S1.2.3)
	3406	Camnal Basichold	RH, stamped frame, oval top and D bottom hole, stamped cam stop,, semi-web cam /w straight teeth, plastic safety below cam	Strade FarEast Ltd. (3cdeal_sfc), 2021	125	111	71	25	200	14.9	31	(3.4)(1S1)^2(2S2)(1S1)^3(2.3.4.3)
	150	Camp Solo, Version A	RH, stamped frame, oval top & round bottom holes, perforated plate cam /w straight teeth, push-button safety latch on cam	K&R Adventure Gear, 2001	157	107	79	31	265	13.5	31	(2)(1D1)^7(1)
	2125	Camp Solo, Version B	RH, stamped frame, oval top & round bottom holes, perforated plate cam /w straight teeth, push-button safety latch on cam	Bob Thrun Collection, 2017	157	116	75	31	267	13.2	28	(1)(2.3)^4(2.1)
	1988	Camp Solo 2	RH, stamped frame, oval top & round bottom holes, drooped cam /w sloping teeth, tab safety /w pull cord below cam	Expé-Spelemat, 2014	92	93	55	24	123	14.2	28	(2)(1S1)^7(1)
	2002 2013	Climbing Technology Simple	RH, stamped frame, pear top holes, round bottom hole, hybrid cam /w sloping teeth, double-pin safety with pivot on side of cam	Knot & Rope Supply / Amazon.com, 2015 Expé-Spelemat, 2015	154	110	75	28	230	15.9	31	(3.2.4)(1H1.2)^3(3.2)
	2989	Climbing Technology Simple +	RH, stamped frame, pear top holes, round bottom hole, hybrid cam /w sloping teeth, double-pin safety with pivot on side of cam	Canyon Store, 2021	154	110	75	28	233	15.7	31	(3.2.4)(1H1.2)^3(3.2)
	1503	Clog, Version A	LH, stamped frame, round bottom hole, plate cam /w "Z" teeth & pin	Paul Gough, 2009	164	102	84	29	250	14.8	24	(Z)^10, circular cam
	2097/3593	Clog, Versions B1 & B2	RH, stamped frame, round bottom hole, plate cam /w "Z" teeth & pin	Bob Thrun Collection, 2017 / Sam Johnson, 2023	165	103	82	30	253	14.5 mm	27	(Z)^12, circular cam
	3594/2096	Clog, Version C	LH, stamped frame, round bottom hole, plate cam /w "Z" teeth & pin	Sam Johnson, 2023 / Bob Thrun Collection, 2017	165	103	85	29	255	14.8	31	(Z)^11, circular cam
	1504	Clog, Version D	RH, stamped frame, round bottom hole, plate cam /w "Z" teeth & pin	Paul Gough, 2009	155	102	80	27	221	14.9	30	(Z)^11, circular cam
	3534	Clog, Version E	RH, stamped frame, round bottom hole, plate cam /w "Z" teeth & pin	Sam Johnson, 2022	164	103	83	29	252	14.2	31	(Z)^11, plate cam /w "Z" teeth & pin
	1 212 213 1585 2100 2397	Clog, Version F	LH & RH, stamped frame, round top & bottom holes, plate cam /w "Z" teeth & pin	Eiselin Sport, 1982 Craig Kubanoff, 2007 Craig Kubanoff, 2007 (given to Артём Бабин) (RH) Jon Marshall, 2012 (traded to Sam Johnson for #3534) Bob Thrun Collection, 2017 Rick Banning, 2019	165	103	82	35	296	14.8	26	(Z)^13, circular cam
	2304 2321	Clog, Version G	LH & RH, stamped frame, round top & bottom holes, plate cam /w "Z" teeth & pin	Bill Liebman, 2017 John Replinger, 2017	165	104	82	35	300	14.6	17	(Z)^16, circular cam
	1524 2123	Clog, Version H	LH & RH, stamped frame, round top & bottom holes, drilled plate cam /w "Z" teeth	Steve Sirrs, 2009 Bob Thrun Collection, 2017	162	103	84	25	219	14.4	15	(Z)^14, circular cam
	2 1586	Clog, Version I	LH & RH, stamped frame, round top & bottom holes, drilled plate cam /w "Z" teeth	Eiselin Sport, 1982 Jon Marshall, 2012	153	103	82	25	211	14.4	21	(Z)^13, circular cam
	3524	Clog, Version J	LH & RH, stamped frame, round top & bottom holes, drilled plate cam /w "Z" teeth	Adventure Outdoors, 2022	148	104	82	25	208	15.0	22	(4.5)^4(4.3)^4
	1909	Clog, Version K	LH, stamped frame, round top & bottom holes, open-web cam /w straight teeth	Jean Slade, 2012	152	103	82	24	205	15.0	22	(4.5)^4(4.3)^4
	197 1554	Clog, Version L	RH, stamped frame, round top & bottom holes, open-web cam /w straight teeth	Brian Trevelyan, 2005 Vanessa Field, 2010	152	104	82	25	209	15	22	(4.5)^4(4.3)^4
	2122	Clog, Version M	LH & RH, stamped frame, round top & bottom holes, open-web cam /w straight teeth	Bob Thrun Collection, 2017	149	104	98	24	240	14.8	22	(4.5)^4(4.3)^4
	3 1963 2004 2124 3461 3592	Clog, Version N	LH & RH, stamped frame, round top & bottom holes, open-web cam /w straight teeth	Ligonier Mountain Outfitters, 1978 John Creelman, 2013 G.I. Joe Army Stores, 2015 Bob Thrun Collection, 2017 On Rope 1, 2021 Noco Gear, 2023	148	104	98	25	255	15	22	(4.5)^4(4.3)^4
	2121	Clog, Version O	LH & RH, stamped frame, round top & bottom holes, open-web cam /w straight teeth	Bob Thrun Collection, 2017	158	105	97	26	260	16.4 mm	22	(4.5)^4(4.3)^4
	1512 1904 1964 2005	Clog, Version P	LH & RH, stamped frame, round top & bottom holes, cam stop, open-web cam /w straight teeth	Kieron Kent, 2009 Brittany Jacobs, 2012 John Creelman, 2013 G.I. Joe Army Stores, 2015	157	104	98	26	262	16	22	(4.5)^4(4.3)^4
	1584	Clog, Version Q	RH, stamped frame, round top & 2 bottom holes, open-web cam /w straight teeth	Jon Marshall, 2012	161	105	99	25	253	16.3	22	(4.5)^4(4.3)^4
	1557 2006	Clog, Version R	LH & RH, stamped frame, round top & 2 bottom holes, open-web cam /w straight teeth	Simon Green, 2011 G.I. Joe Army Stores, 2015	160	104	97	25	258	16.3	22	(4.5)^4(4.3)^4
	233	Clog, Version S	LH, stamped frame, round top & 2 bottom holes, cam stop, open-web cam /w straight teeth	Erica Harley, 2007	156	104	98	26	262	15	22	(4.5)^4(4.3)^4
	196	Clog, Version T	RH, stamped frame, round top & 2 bottom holes, open-web cam /w straight teeth	Jim Halstead, 2005	155	104	99	32	325	15	22	(4.5)^4(4.3)^4
	2117	CMI Shorti, Version A	RH, extruded frame, triangular top & bottom holes, open-web cam /w straight teeth, safety lever above cam	Bob Thrun Collection, 2017	160	116	76	25	220	14.3	28	(2)(5.4)^4(3.4)^2(3.2)^2
	4/5	CMI Shorti, Version B	LH & RH, extruded frame, triangular top & bottom holes, open-web cam /w straight teeth, safety lever above cam	Speleoshoppe, 1979	175	116	76	25	220	14.3	28	(2)(5.4)^4(3.4)^2(3.2)^2
	240 2116	CMI Shorti, Version B /w Version A Optional Safety Pin Kit installed	LH & RH /w v. A pin, extruded frame, triangular top & bottom holes, open-web cam /w straight teeth, safety lever above cam	Sheryle Bauer, 2005 Bob Thrun Collection, 2017 Kit: Pathfinder Sports ca. 1980	175	116	76	25	220	14.3	28	(2)(5.4)^4(3.4)^2(3.2)^2
	3458	CMI Shorti, Version C	LH & RH, extruded frame, triangular top & bottom holes, plated open-web cam /w straight teeth, safety lever above cam	Richard Morse, 2021	166	116	76	28	244	14.3	28	(2)(5.4)^4(3.4)^2(3.2)^2
	222 3462	CMI Shorti II, Version A	LH & RH, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Charles Knowles, 2007 On Rope 1, 2021	168	116	76	28	244	14.4	31	(2)(5.4)^4(3.4)^2(3.2)^2
	2095	CMI Shorti II, Version B	LH & RH, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Bob Thrun Collection, 2017	176	116	76	27	240	14	29	(1.4.3.3.4)(3.2)^6
	"	CMI Shorti II, Version B /w Version A Optional Safety Pin Kit installed	LH & RH /w v. A pin, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Bob Thrun Collection, 2017 Kit: Bob & Bob, 2017	189	116	76	37	328	14	29	(1.4.3.3.4)(3.2)^6
	6/7	CMI Shorti III, Version A	LH & RH, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Pathfinder Sports, 1981	194	120	79	28	265	17.4	29	(1)(2.3)^2(4.3)(2.3)^5(2)
	7	CMI Shorti III, Version A /w Version A Optional Safety Pin Kit installed	RH /w v. A pin, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Pathfinder Sports, 1981 Kit: Pathfinder Sports ca. 1980	205	120	79	37	351	17.4	29	(1)(2.3)^2(4.3)(2.3)^5(2)
	2923	CMI Shorti III, Version B	LH & RH, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Irvin Stickell, 2019	187	120	76	28	260	17.3	27	(5.4)^2(3.4)^3(3.2)
	8 1508 3463	CMI Shorti IV	LH & RH, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Inner Mountain Outfitters, 1989 James Lucchesi, 2009 On Rope 1, 2021	196	121	78	29	274	17.2	27	(5.4)^2(3.4)^3(3.2)
	2072	CMI Shorti IV /w Version B Optional Safety Pin Kit installed	LH & RH, extruded frame, triangular top & bottom holes, braced cam /w straight teeth, safety lever above cam	Bob Thrun Collection, 2017 Kit: Bob & Bob, 2017	170	116	76	37	327	17.2	27	(5.4)^2(3.4)^3(3.2)
	2387	Fort	RH, stamped frame, oval top and D bottom hole, stamped cam stop,, semi-web cam /w straight teeth, plastic safety below cam	Raminta Pilioniene, Quality For You, 2019	126	112	73	23	191	14.6	31	(3.4)(1S1)^2(2S2)(1S1^2)(2.3.4.3)
	227	Greenwald Hand Cam	Ambidextrous, steel shell, cut cam with needle bearing, pin axle, rubber cam closer, noncommercial	Bill Greenwald, 2007	335	73	69	32	160	13.0	27	(Z)^4
	2960	heightec Compact Basic D41, Version A	RH, stamped Al frame, oval top holes, 2 round lower holes, pin cam stop, semi-open cam /w straight teeth, plastic safety below cam	Kyle Evans, 2020	169	112	71	27	217	16.5	31	(2)(1.2)^8(B)
	3502	heightec Compact Basic D41, Version B	RH, stamped Al frame, oval top holes, 2 round lower holes, pin cam stop, semi-open cam /w straight teeth, plastic safety below cam	heightec, 2022	165	111	61	26	174	15.7	31	(2)(1.2)^8(B)
	254 2126	heightec-PMI Compact D41A, Version A	RH, stamped Al frame, oval top holes, 2 round lower holes, pin cam stop, open-web cam /w straight teeth, pin safety below cam	On Rope 1, 2008 FRHAM Safety Products, Inc, 2013 Bob Thrun Collection, 2017	164	113	72	27	218	15.8	26	(1.2^3)^2(1.2)^2(B)
	1528 1966 2127	heightec-PMI Compact D41A, Version B	RH, stamped Al frame, oval top holes, 2 round lower holes, pin cam stop, open-web cam /w straight teeth, plastic safety below cam	On Rope 1, 2009 Bob Thrun Collection, 2017	160	112	73	26	218	13.6	26	(1.2^3)^2(1.2)^2(B)
	255 2128	heightec-PMI Rescue Compact D41A/ D44 Rope Grab/ D44A	RH, stamped SS frame, 2 round lower holes, pin cam stop, open-web cam /w straight teeth, pin safety below cam	On Rope 1, 2008 Bob Thrun Collection, 2017	300	113	80	25	229	15.4	26	(1.2^3)^2(1.2)^2(B)
	22 2203	Kong-Bonaiti Modular, Version A	LH & RH, modular, stamped frame, round & D top holes, round bottom hole, stamped cam stop, asymmetrical open-web cam /w sloping teeth, pin safety below cam	Inner Mountain Outfitters, 1992 Bob Thrun Collection, 2017	148	110	79	37	322	15.5	30	(3)(4.H)^2(3.H)^2(2.2.1)
	1558	Kong-Bonaiti Modular, Version B	LH & RH, modular, stamped frame, round & D top holes, round bottom hole, stamped cam stop, asymmetrical open-web cam /w sloping teeth, pin safety below cam	Brent Fader, 2011	155	114	79	27	240	15.4	30	(3)(4.H)^2(3.H)^2(2.2.1)
	2118	Kong-Bonaiti Modular, Version C	RH, stamped frame, round & D top holes, round bottom hole, stamped cam stop, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Bob Thrun Collection, 2017	158	113	79	28	251	15.7	30	(3)(4.H)^2(3.H)^2(2.2.1)
	2990 3543	Kong Modular	RH, stamped frame, round & D top holes, round bottom hole, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Zoro Tools Inc., 2021 Plaza Pawn, 2022	158	114	79	25	222	15.5	26	(1.2^3)^2(1.2)^2(B)
	2992	Krok Basic, Version A, 3602_0451.37 (Бейсик)	RH, stamped & painted Al shell, hybrid cam /w straight teeth, double-pin safety with pivot on side of cam	Krok, 2021	148	102	75	30	231	16.1	31	(3.2.2)(1H1.2)^3(2.3.2)
	2993/2994	Krok Basic, Version B, 3602_0445.36/ 3602_0445.36 (Бейсик)	LH & RH, stamped & painted steel shell, hybrid cam /w straight teeth, double-pin safety with pivot on side of cam	Krok, 2021	194	104	73	29	220	16.4	31	(3.2.2)(1H1.2)^3(2.3.2)
	1583	Krok Multipurpose Ascender	RH, stamped & painted Al shell, hybrid cam /w straight teeth, double-pin safety with pivot on side of cam	Gear4Rocks, 2012	142	102	76	30	231	15.5	32	(3.2)(2.2.H)^3(2.2.3.2)
	166	Lucky AB-20 Bloquer	RH, stamped frame, oval & round top holes, slotted & round lower holes, braced cam /w sloping teeth & side mud grooves, pin safety below cam	Barrabes.com, 2003	148	105	77	31	245	15	24	(3.2)^2(1.2)^2(B)
	2130	Petzl Basic, Version A	RH, stamped frame, unfinished, round top & round bottom holes, open cam /w "Z" teeth, tab safety below cam	Bob Thrun Collection, 2017	116	101	77	23	177	14.9	19	14 "z" teeth
	202 1539 1540 2129	Petzl Basic, Version B	LH & RH, stamped frame, unfinished, round top & round bottom holes, open cam /w "Z" teeth, tab safety below cam	Luc Bourguignon, 2005 Julian Turner, 2010 Julian Turner, 2010 Bob Thrun Collection, 2017	113	100	76	24	184	14.9	22	12 "z" teeth, sprue between 5 & 6
	12	Petzl Basic, Version C	RH, stamped frame, round top & round bottom holes, open cam /w "Z" teeth, tab safety below cam	Repetto Sport, 1982	122	100	76	24	182	15.5	22	12 "z" teeth, sprue between 5 & 6
	13	Petzl Basic, Version D	RH, stamped frame, round top & round bottom holes, open cam /w "Z" teeth, tab safety below cam	Repetto Sport, 1982	119	100	76	24	182	16.2	22	12 "z" teeth, sprue between 5 & 6
	14 1592	Petzl Basic, Version E	RH, stamped frame, round top & round bottom holes, semi-open web cam /w sloping teeth, pin safety below cam	Speleoshoppe, 1979	138	100	76	26	198	16.7	25	(F)(3.4)^3, (3.2)^2(1)
	1553	Petzl Basic, Version F	RH, stamped frame, round top & round bottom holes, semi-open web cam /w sloping teeth, pin safety below cam	Julia Bloomer, 2011	141	102	78	24	194	17.1	28	(3.4)^2(3.2)^2(1)
	1577	Petzl Basic, Version G	RH, stamped frame, oval + round top & round bottom holes, semi-open web cam /w sloping teeth, pin safety below cam	Geoffrey Storey, 2012	144	102	77	26	206	17.1	28	(3.4)^2(3.2)^2(1.2)
	15	Petzl Basic, Version H	RH, stamped frame, oval + round top & round bottom holes, pin cam stop, semi-open web cam /w sloping teeth, pin safety below cam	Bob & Bob, 1988	145	102	76	26	202	15	25	(2.3)(1S1.2S2)(1S1)^4(1.2)
	1570	Petzl Basic, Version I	RH, stamped frame, oval + round top & round bottom holes, pin cam stop, hybrid cam /w sloping teeth, hybrid cam /w sloping teeth	Dane Hardinge, 2012	144	102	78	29	229	15.0	25	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	2066	Petzl Basic, Version J	RH, stamped frame, oval + round top & round bottom holes, pin cam stop, hybrid cam /w sloping teeth, hybrid cam /w sloping teeth	Bob Thrun Collection, 2017	147	102	78	31	245	15.0	25	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	1912	Petzl Basic, Version K	RH, stamped frame, oval + round top & round bottom holes, pin cam stop, hybrid cam /w sloping teeth, hybrid cam /w sloping teeth	Bob & Bob, 1997	139	102	76	35	226	14.8	32	(3.1.4)(1S1.2S2)^2(1S1.2.3)
	2917	Petzl Basic, Version L	RH, stamped frame, oval + round top & round bottom holes, pin cam stop, hybrid cam /w sloping teeth, hybrid cam /w sloping teeth	Bellingham Second Chance, 2019	150	115	76	26	223	15.0	25	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	2083 3464	Petzl Basic, Version M	RH, stamped frame, oval + round top & round bottom holes, pin cam stop, hybrid cam /w sloping teeth, hybrid cam /w sloping teeth	Bob Thrun Collection, 2017 On Rope 1, 2021	152	82	78	28	249	15.0	25	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	125	Petzl Basic, Version N	RH, stamped frame, oval top & round bottom carabiner & keeper holes, stamped cam stop, semi-open web cam /w sloping teeth, pin safety below cam	Bob & Bob, 1997 Bob Thrun Collection, 2017	139	102	76	35	271	14.8	32	(3.4)(1S1.2S1)^2(1S1.2.3)
	2082 2918 3465	Petzl Basic, Version O	RH, stamped frame, oval top & round bottom carabiner & keeper holes, stamped cam stop, semi-open web cam /w sloping teeth, pin safety below cam	Bob Thrun Collection, 2017 Bellingham Second Chance, 2019 On Rope 1, 2021	136	104	76	33	260	14.8	32	(3.1.4)(1S1.2S2)^2(1S1.2.3)
	277 2084	Petzl Basic, Version P	RH, stamped frame, oval top & round bottom carabiner & keeper holes, stamped cam stop, semi-open web cam /w sloping teeth, pin safety below cam	On Rope 1, 2009 Bob Thrun Collection, 2017	137	104	76	33	261	14.7	30	(3.1.4)(1S1.2S1)^2(1S1.2.3)
	1943 2059 2398	Petzl Basic, Version Q	RH, stamped frame, round top & D-shaped bottom carabiner holes, semi-open web cam /w sloping teeth, pin safety below cam	On Rope 1, 2013 Bob Thrun Collection, 2017 NSS Convention, 2019 Jill Kupelion, 2022	87	103	60	26	161	13.2	38	(3.4)((1S1)^2.2S2)^2(3.4.3)
	2019	Proverti CD 201	LH, extruded frame, pear top & bottom holes, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Ondřej Belica, 2015	219	134	84	30	333	16.4	42	(3)(4.H)^2(3.H)^2(3.2.2)
	2034	Proverti CD 202	RH, extruded frame, pear top & bottom holes, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Ondřej Belica, 2015	219	134	84	30	333	16.4	42	(3)(4.H)^2(3.H)^2(3.2.2)
	248	Repetto Stal’in	RH, stamped frame, pear top holes, round bottom hole, stamped cam stop, hybrid cam /w sloping teeth, double-pin safety with pivot on side of cam	Expé-Spelemat, 2008	154	110	74	28	232	16.5	31	(3.2.4)(1H1.2)^3(3.2)
	3417	Rollgliss R250	RH, stamped frame, round lower hole, braced cam /w sloping teeth & side mud grooves, pin safety below cam	JohnBoysGear, 2021	161	105	76	33	260	15.1	24	(3.2)^2(1.2)^2(B)
	3585	S.E.Peak SA–206	RH, stamped frame, oval top and D bottom hole, stamped cam stop,, semi-web cam /w straight teeth, plastic safety below cam	Amazon.com, 2023	125	112	73	23	191	14.9	30	(3.4)(1S1)^2(2S2)(1S1)^3(2.3.4.3)
	146	Single Rope Technique Equipment A3 EXP 6	LH & RH, 16 mm. rope, extruded frame, 2 top &2 round bottom holes (different sizes), semi-web cam /w straight teeth, pin safety below cam	Single Rope Technique Equipment, 2000	280	113	82	31	282	17.9	29	(3.4)^2(5.4)^2(3.4)^2(F)
	2207	Single Rope Technique Equipment A3 Explorer, Version A	RH, extruded frame, 2 top & 2 round bottom holes (different sizes), semi-web cam /w straight teeth, pin safety below cam	Bob Thrun Collection, 2017	229	111	78	26	223	14.5	27	(4.5)^3(4.3)^2(4.F)
	18	Single Rope Technique Equipment A3 Explorer, Version B	RH, extruded frame, 2 top & 2 round bottom holes (different sizes), semi-web cam /w straight teeth, pin safety below cam	Inner Mountain Outfitters, 1994	239	114	78	27	240	14.5	25	(F)(4.3)^5(4.F)
	16 2120	Single Rope Technique Equipment G.P., Version A	LH & RH, extruded frame, round top & bottom holes, semi-web cam /w straight teeth,	Inner Mountain Outfitters, 1988 Bob Thrun Collection, 2017	176	96	76	26	190	13.9	26	(4.5)^3(4.3^)3
	1969	Single Rope Technique Equipment G.P., Version B	RH, extruded frame, round top & bottom holes, semi-web cam /w straight teeth,	Melody Dawson, 2013	182	96	76	26	187	13.9	26	(4.5)^3(4.3^)3
	3453	Skylotec Get Up	RH, stamped frame, lower clevis, pear top holes, drooped cam /w cutouts & sloping teeth, tab safety /w pull cable below cam	Safe Rescue LLC, 2021	125	95	65	38	236	14.8	27	(3.4.3)(2S2.1S1)^2(1S1)(3.2)
	260 2091	Southpaw Height Adjuster 5000, Version A	RH, extruded frame, triangular bottom hole, braced cam /w straight & "Smilodon" teeth, safety lever above cam	Logan Garrison, 2008 Bob Thrun Collection, 2017	204	120	78	29	265	17.7	30	(5.4.2)(4.3)^4(2)
	1538 2092	Southpaw Height Adjuster 5000, Version B	RH, extruded frame, triangular bottom hole, braced cam /w straight & "Smilodon" teeth, safety lever above cam	Mike Bessette, 2010 Bob Thrun Collection, 2017	200	120	77	28	256	17.7	30	(5.4.2)(4.3)^4(2)
	1955	Spelet Dolní	RH, stamped frame, oval and round top holes, round bottom hole, semi-open web cam /w sloping teeth, knob safety below cam	Ondřej Belica, 2013	139	103	74	27	209	16.0	27	(F)(3.4)^3(3.2)^2(3)
	1957	Spent Universální	RH, stamped frame, round holes, pin cam stop, Al plate cam /w hard insert teeth, pin safety below cam	Ondřej Belica, 2013	153	109	77	26	220	15.2	22	(3.2)^5
	3497	Storrick – Shires	Subtriangular plate, one central and one eccentric rotating grooved wheel cams.	Gary Storrick, 2021	602	122	124	38	571	15.1	Variable	24 slots
	3622	Unknown	LH, steel shell /w ribbed ropechannel, round holes, Al plate cam /w post & Z teeth,	Matthias Höfle, 2023	59	55	48	24	63	11.1 mm	3	(Z)^9
	21 2119	Uola	RH, stamped frame, 2 round top & round bottom hole, semi-open web cam /w sloping teeth, knob safety below cam	John E. Weinel, Inc., 1990 Bob Thrun Collection, 2017	138	108	76	29	238	15.2	28	(4.3)^2(2)(2S2)^2(1S1)(2.3)^2(2)
	179	Ural Alp Mini	RH, Al back, steel cam, swinging Ti front plate, plate cam /w straight teeth,	Ural Sport, 2004	130	85	69	34	200	15.2	23	(3.2)^3
	135	VauDe AB-20	RH, stamped frame, oval & round top holes, slotted & round lower holes, braced cam /w sloping teeth & side mud grooves, pin safety below cam	Inner Mountain Outfitters, 1999	153	108	76	30	246	15	24	(3.2)^2(1.2)^2(B)
	2099	Walkosz i Spółka Hand	RH, stamped frame, oval & round top holes, round lower hole, pin cam stop, hybrid cam /w sloping teeth, knob safety below cam	Bob Thrun Collection, 2017	157	103	81	28	230	16.7	27	(1S1.2S2)^2(1S1)^4(1.2)

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