Tarpaulin tensioner: ball tensioner contains 30 pieces, the cable length is 200 mm/7.9 inch. The extreme expansion length is almost 400 mm/15.7 inch. Easy to use black elastic tensioner: It is easier to use this ball tensioner than others, Just pull the rubber cable through the hole and place it on the ball. This cable has the best strong elasticity. Don't worry about your thing being so big that the cable breaks. ball tensioner: These reliable rubber harnesses provide a secure hold for your tarps and banners. rubber and plastic ball. It is durable and friction resistance. It has great tension to secure the tarpaulin firmly. Its use life is more than 2 years. Wide range of applications: Tarpaulin tensioner is suitable for tents, tarpaulins, posters, tensioners, expansion rings, tarpaulin brackets, rubber tarpaulins , rubber bungees, tents, rubber, curtains, etc. It is a good equipment for camping or storage.Whether you are a professional worker after-sales guarantee: You don't have to worry after purchasing the product. If you are not satisfied with our products or have any questions, please do not hesitate to . We will surely give you a satisfactory answer. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.