The Keeper 36 in. SST Bungee Cord features a durable outer jacket to withstand UV rays and weather damage. Inside premium rubber ensures optimal performance and elasticity for repeated use. Polypropene sheathed steel hooks at each end prevent scratching and marring to personal items and vehicles. The bungee cord comes in a convenient 4-pack to secure multiple items or can be used in tandem to keep large item in place.