Description Triple Fixed With Cam Conventional Sailboat Block Ball bearing design with long lasting characteristics. Technical Description Features Metric American Working Load 800 lb 362.87 kg Breaking Load 2100 lb 952.54 kg Length 3.94 in 100 mm Width 2.94 in 63 mm Maximum Rope Line 0.39 in 10 mm Sheave diameter 1.54 in 39 mm Weight 0.31 lb 141 g