Greenlee® Adjustable Center SheaveAdjustable Radius:19-1/2" (495 mm) or 36" (914 mm)Hook:Forged steel closure-type with 1-1/2" (38.1 mm) openingFrame Material:Aluminum for lightweight constructionYoke:Steel yoke, pinned for easy removalDimensions:21-7/8" (555 mm) high, 24" (610 mm) long, 7-3/8" (187 mm) wideSheave Width:5" (127 mm)Maximum Pulling Force:6,500 lbs (28.9 kN) or lessCompatibility:For use with any cable puller SKU: GRNL.31569 Brand: GREENLEE Country of Manufacture: United States Supplier Part Number: GRNL31569 Unit of Measure: PCS