High Quality Ball Bungee - Our ball bungee is made of high quality nylon, rubber and plastic ball. It is durable and friction resistance. It has great tension to firmly fix the tarpaulin. Its use life is more than 2 years. The way to use - It is easier to use this ball stretcher than others, just pull the rubber cable through the hole and place it over the ball. This cable has the best strong elasticity. Don't worry about your thing being so big that the cable breaks. MULTIFUNCTION - Our ball tensioner contains 40 pieces. Tarp tensioner is suitable for tents, tarps, posters, tensioners, expansion rings, tarpaulin supports, rubber tarps, rubber tensioners, tents, rubber, curtains, etc. It is a good equipment for camping or storage.