Bungee cords are elastic ropes made from rubber or elastic materials, often covered with a woven fabric. They are designed to stretch and return to their original shape, providing a strong and flexible way to secure items. Commonly used in outdoor activities, they can hold gear in place on vehicles or during camping trips. These cords come in various lengths and thicknesses, with hooks on each end for easy attachment. Bungee cords are popular for sports like rock climbing and skydiving, where they can be used to create a safe and controlled environment for activities that involve jumping or falling.