Heavy Duty Double Revolving - External Halyard

Heavyweight Cast Aluminum Body and Components. Double Aluminum Pulleys with Stainless Steel Axle. SEALED Upper and Lower Stainless Steel Ball Bearing Assemblies. 1-1/4" NPT Spindle. 1/2”-13”NC Top Drilling (5/8”-11NC Available). Recommended Halyard Diameter – 3/8".