ELASTIC CORD WITH HEAVY DUTY HOOKS - Heavy duty 8mm elastic cord designed for long term use with plastic coated steel hooks on both ends. All Weather Bungee Cords Bungee Cords - Designed for use in all weather conditions. They are perfect for building shelters and are especially useful for camping and other outdoor activities. Maximum Elasticity - A strap with hooks that, at maximum elasticity, doubles in length and can support a load of up to 30kg.