M82-35 Double Block. Computer machined block finished in hardcoat anodized black for durability. Torlon(tm) rollers and Delrin(tm) ball bearings ensure low-friction aluminum sheaves that will handle high loads. Machined center of the block may be used as a 'becket' eliminating the need for other blocks. Forged 17-4 D Shackle on a swivel head may be locked in place to eliminate line twist. Flushing holes in each cheek allow easy flushing.
Length 6-13/32 in (160 mm), Width 3-7/32 in (82 mm), Thickness 2 in (51 mm), Weight = 21 oz (653 g), Safe Working Load 5000 lb (2270 kg).