The Keeper 48 in Ultra Bungee Cord is constructed from quality materials for versatility and dependability. The bungee cord is designed with a durable outer jacket to withstand UV rays and weather damage. Inside premium rubber delivers optimal performance and elasticity. Over-sized sheathed steel hooks prevent scratching and marring to personal items and vehicles while providing up to 3x the endurance than conventional hooks.Larger and stronger than conventional hooksHigh-quality rubber maintains elasticity with repeated usesUV ray and weather-resistant outer jacket