{High-quality material}: Swimming pool cover tensioner, made of high-quality aluminum, with good strength and hardness, not easy to break or deform, not easy to rust, and can support your long-term use. Tightening rope kit: The package contains a total of 2 rope pool cover tensioners, dimensions: about 8 x 6.5 x 2.4 cm, and is suitable for round and oval swimming pools of different sizes. {Convenient installation}: Rope pool cover tensioner, the button design is easier to use. Just pass the rope (not included) into the winch through the eyelet of the pool cover, and the cable can be easily fixed around the cover. {Pool Cover Winch}: Aluminum alloy tightening rope, it can well protect the pool cover from being attacked by strong wind, cover the waterproofness and keep the pool clean. {Wide Application}: Pool cover rope tensioner, suitable for steel wire, clothesline, chain and other ropes, the pool cover winch is a good helper for fixing the pool cover.