Pulley Block Product Type Pulley Block Pulley Type Fixed Mount Type Not Applicable Working Load Limit 990 lb Operation Pulling Attachment Type Bolt-On Compatible Rope Diameter 1/8 in Sheave Inside Diameter 7/8 in Sheave Depth 5/32 in Sheave Outside Diameter 1 in Compatible Rope Type Wire Rope Bearing Type Sleeve Attachment Inside Diameter Not Applicable Housing Material 316 Stainless Steel Mounting Hole Diameter Not Applicable Number of Grooves 1 Sheave Material Nylon