33-05 Stainless Steel wire block with aluminum sheave. Aluminum sheave runs on our Nomex(tm)/Teflon(tm) bearing for low friction and high safe working load.Sheave Dia. 2" (51 mm), Max Wire 3/16" (5 mm), ---, Pin dia. 1/4" 6 mm), L 3-25/32" (96 mm), W 2-1/8" (54 mm), T 17/32" (14 mm), SWL 1750 lbs. (795 kfg), Weight 3 oz. (85 g), Max Wire 3/16" (5mm)