Synthetic Winch Rope Extension 3/8" customized length Synthetic winch rope extension, 3/8" 10 feet, you can choose the qty. to order the length you want.Like 120 feet, you select 12 in qty. High strength, min.18600LB,not max or average, for winch 11000LB or less. Shipment takes around 5 business, PO box is not covered.