Description Manufacturer part #: 96.51 Technical Description Features American Metric Sheave size 1 1/2 in-7/8 in 38-22 mm Max line size 5/16 in 8 mm Overall Height 4 1/4 in 108 mm Weight 2.04 ounces 58 grams Breaking Load 1,323 lbs 600 kg Max. Working Load 573 lbs 260 kg