Pulley Block Product Type Lead Pulley Block Pulley Type Fixed Mount Type Upright Mount Working Load Limit 1 650 lb Operation Pulling Attachment Type Snap Shackle Compatible Rope Diameter 1/2 in Sheave Inside Diameter 1 1/2 in Sheave Depth 3/4 in Sheave Outside Diameter 2 in Compatible Rope Type Fibrous Rope Bearing Type Sleeve Attachment Inside Diameter Not Applicable Housing Material 316 Stainless Steel Mounting Hole Diameter 1/4 in Sheave Material Thermoplastic