Material: Steel With Die Cast SheaveFinish: Zinc PlatedSafe Work Load: 480 lbs.Maximum Rope Size: 3/8"Designed For Use With Rope Or Cord In Indoor And Outdoor ApplicationsLife Lube Alloy Bearing, Sheave Rolls SmoothlySwivel Latching Hook For Safe Quick Easy HookupsRemovable Axle And Sheave For Easier RiggingDo Not Use For Overhead Lifting Or Support Of Human Weight