High Quality Ball Tensioner - High quality rubber and plastic balls. It is durable and abrasion resistant. There is plenty of tension to secure the tarp securely.The tarp stretcher is suitable for tents, tarps, posters, bungees, expansion rings, tarp hangers, rubber tarps, bungee cords, etc. rubber, tents, rubber, curtains, etc. This is a great device for camping or storage.HOW TO USE - Using this ball stretcher is easier than others, just run the rubber cable through it. the hole and place it on the ball. This cable has the best strong elasticity. Don't worry if your stuff is so big that the cable breaks.Ball Stretcher - Ball Stretcher contains 30 pieces with 200mm / 7.9 inch cable length. The extreme extension length is nearly 400mm/15.7inch. The cable length is 150mm/5.9in. The extreme extension length is nearly 300mm/11.8inch.Dual bungee cords protect your safety and equipment, allowing you to fully concentrate on your project.