PETZL Unisex Adult's Verso Abseiling Equipment, Grey, standard size

Compact, lightweight belay/rappel device, for use with one or two rope strands and for rappelling Compatible with dynamic single ropes 8.5 to 11 mm, half ropes 7.1 to 9.2 mm, and twin ropes 6.9 to 9.2 mm Feeding slack and catching falls are accomplished using standard belay techniques, always keeping a hand on the brake side of the rope V-shaped friction grooves enable controlled braking. Can be used to belay a climber and to rappel