Mainline/Towline. A standard duty “cable only” 8 to 9 ft long line with 6″ loops at each end. Made from 1⁄8” galvanized aircraft cable nylon coated to 3⁄16“. Includes stop in middle of line to attach tuglines preventing tangles will lines are stowed. Black nylon coating is rated to -50° F. 2000# test.