Description Triple Fixed Conventional Sailboat Block Ball bearing design with long lasting characteristics. Technical Description Features Metric American Working Load 800 lb 362.87 kg Breaking Load 2000 lb 907.18 kg Length 3.54 in 90 mm Width 2.48 in 63 mm Sheave diameter 1.54 in 39 mm Line Up To 0.39 in 10 mm Weight 0.40 lb 181 g