KEEPER 48" SST 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. SST hooks have a steel core inside that makes it stronger than conventional bungee hooks, and a glass-filled nylon outer sheath adds grip and protects belongings. KEEPER Bungee Cords are strong enough to be relied on whenever they're needed.