SMC CRX Crevase Rescue Pulley, Blue - Part 157300/157301

["Weighing only 52g and with a breaking strength of 22kN, the SMC CRx Crevasse Rescue pulley is lightweight yet very strong, making it ideal for alpine climbers and mountaineers","Featuring a stainless-steel axle and a lightweight nylon sheave, it maximizes efficiency and offers an excellent strength-to-weight ratio","Compact pulley fits easily in a pocket or can be clipped to your climbing harness so it's ready for an emergency","Ideal for 3 to 1 Z haul systems with prusik-minding side plates; A great choice for setting up 2:1 C-systems and 3:1 Z-systems for hauling a fallen climber out of a crevasse","Base design keeps a prusik knot from jamming in the pulley when you're hauling; works well with prusik cord up to 8mm in diameter and accomodates up to 13mm in diameter'","Solid side plates prevent objects that could cause a snag from entering the pulley","Boasts a smooth-running 1.25\" sheave on a stainless steel rivet axle"]