Our tensioners are designed for maximum grip. Made of elastic cord, 25cm long when stretched and 12cm long when unstretched. Used to replace broken closures on ropes, bags, clothing, backpacks, sportswear, tents, etc. Can be used for a variety of purposes: boat covers, tarps, tents, trailers, camping, caravans and commercial applications. Warning: Not suitable for children under 3 years old. Tips: You can use it yourself or give it to family, friends or colleagues. We not only provide you with high-quality products, but more importantly, we provide you with a long-term after-sales warranty. When you buy our products, you will get comprehensive after-sales support, so that you can buy with confidence and satisfaction.