The Keeper® ZipCord® 20 Adjustable Bungee Cord is constructed from quality materials for versatility and long-lasting dependability. It is designed with a durable outer jacket to withstand UV rays and weather damage. The cord is fully adjustable and expands from 6 in. to 30 in. Inside premium rubber delivers optimal performance and elasticity for repeated use.The sheathed steel hooks prevent rust, scratching and marring of personal items and vehicles.