Swivel head may be locked in place to avoid twists or allowed to swivel. Delrin Sheave, Aluminum Cheeks. Combine with 5 series adapters for a variety of leads. Sheave Dia. 2", Thickness 1-15/16", W 2 1/8", L 5 17/32", SWL 1750 lbs., Weight 5.7oz, Max Line 7/16", Max Line 7/16".