Extension hooks give you incredible grip, ensuring pro-grade loads. The rubber expander with hook is an ideal accessory for using awnings and garden tents. The expansion hook is made of a mixture of flexible latex (elastic loop) and steel heavy (hook). Durable, flexible and elastic, good grip, high strength, reusable. The reliable elastic cord has the highest stability, the hook and elastic band are firmly connected and it is not easy to come apart . Good tool for outdoor camping and hiking. The length can be increased by tying a knot or connecting two hooks. The rubber tensioner can be installed and removed in seconds, easy to use. Suitable for stage fabrics, tarps, posters, awnings, pavilions, trampolines, advertising banners and privacy nets, suitable for indoor and outdoor use.