【Versatile Application】: This 30-meter steel wire and five tensioner set is suitable for various shapes of above-ground swimming pools, such as round, oval, and rectangular pools. It's also suitable for securing other large outdoor items like car covers, tents, clotheslines etc. 【Easy to Use】: The pool cover wire and winch kits is easy to install. Simply thread the cable through the holes in the pool cover, pass both ends of the cable through the winch, then rotate the pool cover winch to tighten the cable and secure your pool cover 【Material】: Made from sturdy aluminum alloy that ensures longevity and robustness 【Product Dimensions】: Each winch measures 8cmx2cmx6.4cm which is compact yet effective in maintaining a tight grip on your covers 【Package Includes】: The package comes with a 30-meter steel wire and 5 winch(Optional) ensuring you have everything you need for securing your outdoor items effectively Size Chart: Winch: 8cmx2cmx6.4cm/3.15inchx0.79inchx2.52inch Cable: 30-meter/98.4ft Package Includes:1x Winter Cover Cable 5x Winch Note: Please allow slightly errors 1-2cm differences due to manual measurement.