Pantin Foot Ascender.

Petzl Pantin foot ascender, a big advantage for long rope ascents. With the Pantin, supporting the foot holds the body in a more upright position and makes the ascent faster and less tiring for the arms. The Pantin is also easily removed from the rope with a simple movement of the foot. The Pantin is used only on the right foot, for use with ropes 7/16" & 1/2".