NRS Revo Rescue 2" PulleyBuilt for use with ropes from 3 8" 9 16" (9mm 15mm), the NRS Rescue Revo Pulley is a prusik minding pulley ideal for swiftwater rescue and climbing situations. Featuring aluminum side plates and sheave with a self lubricating bronze bushing, the Revo Rescue is rated for General use to the NFPA standard. The pulley weighs 6. 7 oz.(190 gm) and features a 2" (51 mm) diameter sheave. This burly pulley is strength rated at 8992 pounds force (40 kN).