Durable Material: The surface of the rope is made of polypropylene fiber, very easy to wear. The inside of the rope is made of imported latex silk with strong elasticity. The ball joint is made of eco PP material, the fixation worked by the ball. High Elasticity: With the strong elasticity, you don't have to worry that your item is too big so that the elastic rope can't hold or the elastic cord will be cut. Special Ball Joint: Make the things you want to stabilize on the cord, put the cord with the ball end through the other end, fixing your items completely. No unnecessary cutting of already mounted clamps that end up in the trash. The tent bungees are simple and reusable! Multiple Uses: Good helper for fixing canvas, tarps, umbrella stand, tent stand, table legs. High Capacity: One package including 20 pieces in total, can meet most of your needs. Ball Diameter: 27mm, Rope Diameter: 4mm, Rope Length: 150mm. Description: Made of durable material, the rope has strong elasticity, can fix canvas, tent stand, umbrella stand, luggage, sleeping bags and others easily, you can stretch to any size you want. A pack of 20 pieces can meet most of your needs. The elastic cord design provides consistent tension and firm hold. Specifications: Rope Diameter: 4mm Ball: 27mm Rope Length: 150mm Package Included: 20 Bungee Cords