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The Petzl Huit is a figure-8 descender for use on a single or doubled rope.
Petzl Huit Descender FEATURES of the Petzl Huit Descender Square shape to reduce kinking the ropes and formation of a lark's head knot Compact and lightweight
The Petzl Huits figure 8 square design reduces twisting of the rope and risk of girth hitch formation while rappeling.
Sometimes those long descents can really heat up a descender, the Petzl Figure 8 (huit antibrulure) has an anti-burn grip for holding the device when it gets hot.. . . Square shape to reduce twisting of the ropes and formation of a lark's head knot. High strength forged aluminum. Small hole can be used with thin ropes if necessary, or as a belay plate. For descending on single or double rope. For use on ropes from 8 to 13 mm. Weighs less than 4 oz..