The Climbing Technology Groove Kit consists of the Groove plus a screwgate carabiner. It can be used with single, half and twin ropes. It allows the self-locking and independent belaying of one or two seconding climbers. Groove Kit Features:
Rope diameter: Half Ropes and Double Ropes: 7.7 - 9.0 mm Single Ropes: 8.9 - 10.5 mm Weight: 85g