1Snatch block with 4 tons/8800lbs load capacity, can provides perfect angles during difficult pulls, double your pulling power. 2Reduce winch load on the amplifier and remove heat, prevent overheating to extend winch motor life. 3Black powder coated steel pulley wheel, high tensile strength, smooth and quiet pulleys if pulled over the axle. 4Fits for 5/16 inch winch cables, and the cable will not bunch on one side of the drum during angled pulls with the winch's pulley lock feature. 5Double the towing capacity of the winch, suitable for trailer, climbing, warehouse, home and industrial uses. 63/16 inch thick, can be applied to ATV / UTV / Truck winch, simple operation, pulley rotates to accept line, no disassembly required.