Easy to Use : The tent tensioner is very easy to install by simply passing the elastic band through the intersection of the two eyelets and pushing the loop over the plastic ball. Flexible : There is a ball on the rope that allows you to adjust the length of the rope at will, allowing you to extend the tent tarp when camping in the wild without having to bend or wrinkle it. Reusable : The ball is made of wear-resistant black plastic and the elastic core is made of high-quality rubber, which is durable and wear-resistant. The plastic and rubber are resistant to temper. Tent Turnbuckle Size: The Awning turnbuckle contains 30 pieces, the longitudinal elasticity is 150mm (15 pieces), which can be stretched to 300mm, and the longitudinal elastic is 200mm (15 pieces), which can be stretched to 400mm. The ball diameter is 22mm. Widely Used: The adjustable elastic turnbuckle is very suitable for fixing household items, awnings, tarps, outdoor covers, billboards, trampolines, elastic bands for tents, outdoor curtains, etc.