An upgraded version of the popular rescue pulley, the SMC CRx2 1" Pulley is incredibly strong, lightweight and serves a variety of functions. Easier to carry in your life jacket pocket or swiftwater rescue kit than other, heavier pulleys. High-strength aluminum sides keep it light while a stainless steel axle resists corrosion. The pulley works great in Z-drag 3-to-1 extraction systems, rated at an amazing 22 kN (4,946 lbf) load strength. Features a durable and smooth-running nylon sheave. This pulley has the required prusik-minding capability for use in 3-to-1 mechanical advantage systems, making it easier to haul or lower heavy loads.