The Revolver carabiners offer a unique pulley sheave at one end of the carabiner to use for mechanical advantage systems, speed lines, and hauling systems. With DMM’s lightweight I-Beam construction multiple Revolvers can be carried on you harness without weighing you down. Shrouded nose keeps from snagging on webbing and ropes. The DMM Revolver Quicklock is NOT suitable for climbing. Aluminum construction. MBS: 24kN