Stainless steel material]: Our winch is suitable for above ground pool cover cable is made of durable metal, will not rust. . The cable is made of 6 steel wire coils with hot melt adhesive coating to make the cable stronger. Whether the pool cover winch or cable, it will not rust due to rain or snow into the water, long service life. Use range: 130 feet (about 40 meters) long cable with heavy-duty winch, suitable for a variety of round, oval and rectangular pools. Only for above ground pool winter cover cable. [How to use in pool cover]: This winter pool cover cable and winch kit combo is used to fix the winter cover in place on the top of the pool. There is a cable that you run through the cable loop on the cover, then run the ends of the cable through the winch. Pull the cable all the way around the pool, then wind up and tighten the cable. Save your strength and time]: The winch uses a butterfly hand crank handle, which is a sweet design that makes it better and easier to tighten than a regular winch. This cable and winch will be a good companion for your pool cover. Practical Performance: Our winter winch is a good assistant to fix the cable well, thus protecting your pool from dust or debris, preventing the cover from being affected by strong wind, allowing you to enjoy swimming time at any time. Product parameters: winch + steel wire (150 feet): package size: 28*20*5cm, 545g (PE self-sealing bag)