The Keeper® 5/16 in. x 300 ft. Marine Grade Bungee Cord Reel is made from high-quality material for versatility and dependability no matter the application. The bungee cord is designed with a durable outer jacket to withstand UV rays and weather damage. Inside premium rubber ensures optimal performance and elasticity for long-lasting repeated use. The marine grade bungee cord reel allows the user to customize the length of the cord as needed.