Description Manufacturer part #: 96.31 Technical Description Features American Metric Name Single Sheave size 1 1/2 in 38 mm Max line size 3/8 in 10 mm Overall Height 3 5/32 in 80 mm Weight 1.48 ounces 42 grams Breaking Load 1,322 lbs 600 kg Max. Working Load 507 lbs 230 kg