Tarpaulin stretcher: The straw bale stretcher contains 30 pieces with a cord length of 200mm or 7.9inch. The ultimate extension is close to 400mm or 15.7in. The cable length is 150mm or 5.9in. The ultimate extension is close to 300mm or 11.8 inches. Easy to use black set: This rope is easier to use than others, just thread the rubber rope through the hole and place it on the ball. This cable has the best strong elasticity. Don't worry about your stuff being so big the cable will snap. High Quality Ball Tensioners: These reliable rubber harnesses provide a secure hold for your tarps and banners. High quality rubber and plastic balls. It is durable and wear resistant. There is plenty of tension to secure the tarp securely. Wide range of applications: The tarp stretcher is suitable for tents, tarps, posters, stretchers, telescopic rings, tarp supports, plastic tarps rubber, rubber stretchers, tents, rubber, curtains, etc. It's a great device for camping or storage.