Pulley Block Product Type Pulley Block Pulley Type Swivel Mount Type Not Applicable Working Load Limit 1 650 lb Operation Pulling Attachment Type Snap Shackle Compatible Rope Diameter 1/2 in Sheave Inside Diameter 1 13/32 in Sheave Depth 3/4 in Sheave Outside Diameter 2 in Compatible Rope Type Fibrous Rope Bearing Type Ball Attachment Inside Diameter 7/16 in Housing Material 316 Stainless Steel Mounting Hole Diameter Not Applicable Number of Grooves 1 Sheave Material Nylon