The is an unusual T–side eight. It is one of the following closely-related designs:

Image Eight Construction
CanyonZone Zone 8 CanyonZone Zone 8 Milled
Kailas Canyon Kailas Canyon Forged
Kong Oka Kong Oka (805.08.B) Forged
Kong Oka-X Kong Oka-X Forged

These vary in size and construction, with the Oka being the lightest and the Canyon the heaviest. The Oka was the progenitor, with the others following,

The unusual shape of the rope hole allows for a taller hole without increasing the height of the eight.

The slot between the T-horns is suitable for belaying.

The lower spur does not appear to serve an essential purpose. Perhaps it is a result of the aversion some canyoneers have to rigging a figure eight in the standard manner. I prefer the location used on the Canyon, as it points away from me and cannot poke me in the stomach.

The eye is small and there are many normal carabiners and maillons that will not fit through it. This restricts versatility, and eliminates the option of using two carabiners for redundancy. The eye has an annoying o-ring insert that keeps the from moving freely on the carabiner. It makes attaching and removing the more difficult. The ring catches in the notch in some of the carabiners that will fit. Removing the o-ring is a straight-forward option, but it still leaves a device with a small eye. Plan on dedicating a carabiner if you want to use your without a lot of hassle. I see too many disadvantages to the small eye design and no advantages (reducing the chance of dropping the device in one unlikely scenario by adding another doesn't count). The eye alone is sufficient for me to eliminate the from serious consideration.