Specifications Item Model Number: 20FTX40FT+Center End Step Pool Cover Material: PP Spring Material: Spring Steel Pool Cover Thickness: 0.35mm/0.013 inch Pool Cover Size: 22x42 ft/6.7x12.8 m Center End Step: 4x10 ft/1.2x3.04 m Suitable Pool Size: 20x40 ft/6.09x12.19 m Product Weight: 30.83 kg/67.97 lbs Package Content 1 x Pool Cover 1 x User Manual 1 x Installation Rod 1 x 1/4-Inch Wrench 1 x Stamped Aluminum Part 30 x Ground Anchors 30 x Springs