Black Diamond Rocklock Twistlock Carabiner Gray. Equipped with a small rope-bearing area a larger rope-bearing surface and a hot-forged lightweight construction these Climbing and Mountaineering Equipment from Black Diamond are perfect for rappelling or belaying using a Munter Hitch or belay device. The keylock nose and autolocking twistlock sleeve on the Black Diamond Rocklock Twistlock Autolock Carabiner keep ropes from snagging while the slightly curved spine maximizes the gate opening to make belaying or rappelling easier. Ranging from a Type H or HMS connector to a Type H or HMS connector attach your ropes chains and other objects with the autolocking twistlock sleeve on a Black Diamond Rocklock Twistlock Belay/Rappel Carabiner for all of your belaying and rappelling needs. Specifications for Black Diamond Rocklock Twistlock Carabiner: Manufacturer: Black Diamond Color: Gray Features of Black Diamond Rocklock Twistlock Carabiner Hot-Forged for lighter-weight construction Square hinge end holds belay loop securely in place Slightly curved spine maximizes gate opening Keylock nose prevents snagging One-hand operable Autolocking Twistlock sleeve Type H or HMS connector. For dynamic belaying using a Munter Hitch or belay device. Package Contents: Black Diamond Rocklock Twistlock Carabiner Black Diamond BD2102581003ALL1: Rocklock Twistlock Carabiner Gray