Description: DMM Revolver is a ground breaking concept that has gained legendary status for industrial and recreational use. Take the advantages of lightweight aluminium connectors and morph them with a roller wheel from a pulley and you've got an incredibly versatile piece of equipment: counterweight rescues, clipping tight lines, hauling chainsaws, deviating running ropes, etc. the list goes on. integrated pulley wheel allows ropes to run more efficiently through the carabiner. Used at changes of direction on a route, it helps reduce rope drag.