Black Diamond largest belay and rappel locker, the RockLock Triple Lock carabiner features a one-hand-operable three-stage  twistlock gate and a hot-forged, lightweight construction. This versatile locker is ideal for glacier travel, anchors, or use with a belay device.

• Square hinge end holds belay loop securely in place 
• Slightly curved spine maximizes gate opening 
• Keylock nose prevents snagging 
• One-hand operable triple action twistlock sleeve  
• Type H or HMS connector. For dynamic belaying using a Munter hitch or belay device