The sand and grit that gets between the descending device and the carabiner while canyoneering can really shorten the life of an aluminum carabiner. This super-robust, steel HMS carabiner from Edelrid is virtually immune to wear associated with rappelling and belaying with tubers, braking assist tubers and top rope rigging. The HMS Bruce Steel FG is designed to perfectly complement the Mega Jul’s and Mega Jul Sports and easily fits in most descending devices. It has a keylock closure system for optimal handling when clipping and un-clipping. The spring bar holds the carabiner in place to prevent cross loading and the H-profile construction ensures the best possible use of material and minimal weight.