Tarpaulin Tensioner: There are a total of 25 ball type tensioners, with a cable length of 300 mm. The maximum expansion length is almost 500 millimeters/31.5 inches. These reliable rubber seat belts provide secure support for your waterproof cloth and banner. High quality rubber and plastic balls. It is durable and resistant to friction. Firmly fixing the waterproof oilcloth requires a lot of tension. The tarpaulin tensioner is suitable for tents, posters, pavilions, trampolines, mesh banners, PVC banners, and has great tension, which can firmly fix the tarpaulin. This type of ball tensioner is easier to use than other tensioners. Simply thread the rubber cable through the hole and place it on the ball. This type of cable has the best strong elasticity. Don't worry about your things being too big and causing the cable to break. The rubber ball tensioner can be connected and removed within a few seconds. Plastic and rubber have strong weather resistance. Adjust the length of the rubber by moving the knot.