RP130 Heavy Duty Steel Steel Rigging Block Removeable Pin w/ Bushing. Features and specifications: Stainless Steel Cheek Plates and Steel Sheave. Moveable cheek plates for easy insertion anywhere in a line. Removeable pin with sling bushing. Capacity: 5/8″ Diameter Rope Tensile Strength: 28,000 lbs. Sheave Diameter: 3.00″ Pulley Height: 6.50″ Pulley Width: 4.00″ Weight: 2.30 lbs. Manufacture: CMI