Keeper 13 inch Bungee Cords are made from the highest quality materials for long-lasting dependability no matter what the application. All Keeper bungee cords are designed to withstand UV rays and weather damage with durable outer jackets in bright, visible colors. Inside, premium rubber ensures top quality performance and outstanding toughness. Heavy gauge steel hooks at both ends are coated with a protective vinyl covering, which prevents rust and ensures that hooks will never damage paint or scratch metal. Keeper Bungee Cords are strong enough to be relied on whenever they're needed.