Erickson's Jumbo bungeys are 1/2" thick, making them 1.5 times thicker than standard bungey cord. The bungey is made up of several rubber core strands wrapped in a polypropylene covering to protect against the climate and abrasions. Each hook has a zinc coating to stand up against corrosion and a rubber cap to protect your cargo. | Erickson Manufacturing Ltd. Heavy Duty Jumbo Bungee | Size 1/2" x 36"