Greenlee 8024 Hook Sheave, 8000-Pound Capacity, 24-Inch For use with UT8, UT5, 6001, UT4 and UT2 cable pullers Strong, welded steel frames Forged steel closure type hooks with 1-Inch (25.4 mm) opening Aluminum alloy with self-lubricating bearings Outside diameter 24-Inch, inside radius 6-1/2-Inch