1、Rubber Material: Heavy duty bungee cord is made of 8mm/0.31in rubber, which is not easy to break and durable. 2、Aluminum Alloy: Heavy duty bungee cord's mountaineering buckle is made of aluminum alloy, which is durable and not easily deformed. 3、Firm and Durable: Heavy duty bungee cord interface is connected with metal and wrapped in leather case, which is firm and reliable, beautiful and does not cut off. 4、Multipurpose: Bungee cords can be used for tent fixing, canopy fixing, things binding, truck shelf goods fixing, camping supplies storage, etc. 5、Widely Used: Bungee cords with carabiners is suitable for outdoor, mountaineering, camping, hiking, fishing, etc. Item Type: Bungee Cords Material: Rubber, Aluminum Alloy Rope Diameter: Approx. 8mm/0.31in 1 x Bungee Cord