High-quality ball bungee cords Our ball bungee cords are made of high-quality nylon, rubber, and plastic balls. It is durable and friction-resistant. There is plenty of tension to secure the tarp securely. Its service life is more than 2 years. The ball bungee cord dimensions and cable length are 20 cm / 7.9 inches. The extreme extension length is nearly 39 cm / 15.4 inches. The cable is 0.5 cm in diameter and the ball is 2.9 cm in diameter, which is longer than other sellers to hold the tarp more securely. The ball bungee cord is better than others, just pass the rubber cable through the hole and place it on the ball. This cable has the best strong elasticity. Don't worry about your belongings being so big that the cable will break. Versatile Our ball stretcher contains 40 pieces. Other sellers only give you 25 pieces. The tarpaulin tensioner is suitable for tents, tarps, posters, tensioners, expansion rings, tarpaulin supports, rubber tarps, rubber tensioners, tents, rubber, curtains, etc. It is an excellent device for camping or storage.