The Perfect Bungee 24-Inch Boat Snubber for Pets, JD Green When used with a mooring line, the boat snubber acts as a shock absorber and reduces wear and tear on lines; just thread and wrap Made in usa No hooks; the polyurethane boat snubber is molded with a 3/4-Inch diameter hole at each end to accommodate a mooring line or rope Super-strong, flexible polyurethane material allows for a safe stretch up to twice its original length and features excellent memory retention Overall length 24 inches