【Scope of delivery】 Our product contains 2 tensioners. Mounting accessories can be installed in different places with different ropes. The rope can be retracted and released at any time to protect areas such as swimming pools from rain, snow or other materials. 【Practical performance】 Our wire tensioner has a rotating design. The butterfly-shaped hand-twisting design makes the product have a better grip, which is better than the traditional winch tensioning effect, easier to tighten, lighter and more economical to use. This allows you to quickly connect metal cables, etc., saving your physical strength and time! 【Easy to use】 The tensioner can easily adjust the rope and is simple and convenient to use. Simply pass the wire rope through the holes around the pool cover and then through the turnbuckle, rotate the turnbuckle to tighten the rope and lock the gear to secure the swimming cover in place. [Widely used] The tensioner is suitable for steel wires, clotheslines, threads, chains