The KEEPER 36 in. SST Bungee Cord is constructed from quality materials for long-lasting versatility and dependability. It features a durable outer jacket to withstand UV rays and weather damage. Inside premium rubber ensures optimal performance and elasticity for repeated use. Glass-filled polypropene outer sheath stainless steel hooks at each end prevent rust, scratching and marring of personal items and vehicles. The bungee cord comes in a convenient four-pack to secure multiple items or can be used in tandem to keep large item in place.