The C.A.M.P. USA Large Mobile pulley works well on large ropes that are used in rescue situations, rigging and big-wall climbing. Strong construction is designed to handle intensive use and heavy loads ideal for use in rescue situations, rigging and big-wall climbing. Rotating side plates allow easy placement anywhere along the rope. Aluminum side plates, aluminum sheave and steel bearings stand up to regular use. Great for use with fat ropes accommodates ropes up to 15mm in diameter.