' Pulley Block, Designed For Wire Rope, Max. Cable Size 5/16 In., Working Load Limit 830 lb., Sheave Outside Dia. 1-3/16 In., Sheave Width 17/32 In., Bearing Type Plain, Mounting Hole Dia. 3/16 In., Block Material 316 Stainless Steel, Sheave Material Nylatron, Length 1-25/32 In., Width 17/32 In., Depth 1-1/32 In., Finish Natural '