This National Hardware steel swivel single pulley has a Life Lube alloy bearing for smooth, reliable operation and a removable axle and sheave for easier rigging. Appropriate for use with rope or cord in both indoor and outdoor applications. Pulley size = Safe Working Load (SWL)1-1/2" = 420 lb SWL2" = 480 lb SWL2-1/2" = 550 lb SWL3" = 650 lb SWL | HILLMAN 3211BC Swivel Single Pulley | Size 3"