The high quality ball tensioner: These reliable rubber harnesses provide a secure hold for your tarps and banners. rubber and the high quality plastic ball. It is durable and friction resistance. It has great tension to firmly fix the tarpaulin. Its usage life is more than 2 years. FLEXIBLE: The banner rubber bands can be used professionally or privately optimally Easy to use: It is easier to use this tensioner for ball than others, Just pull the rubber cable through the hole and put it on the ball. This cable has the best strong elasticity. Don't worry about your thing being so big that the cable will break. Wide range of applicationsTarp stretcher is suitable for tents, tarps, posters, stretchers, expansion rings, tarp hangers, tarps rubber, rubber stretchers, tents, rubber, curtains, etc. It is good equipment for camping or storage. Whether you are a professional worker or a "handyman", bungee cord takes care of your safety and your equipment so that you can fully concentrate on your projects. Ball Tensioner:Ball tensioner contains 30 pieces the cable length is 200mm/7.9inch. The extreme expansion length is almost 400 mm/15.7 inch. The cable length is 150mm/5.9inch. The extreme expansion length is almost 300 mm/11.8 inch.