VEVOR Inground Pool Safety Cover, Fits 20 ft x 40 ft Rectangular Winter Pool Cover with Right Step, Triple Stitched, High Strength Mesh PP, Good Rain Permeability, Installation Hardware Included22 ft x 42 ft Pool CoverHigh-Quality PolypropyleneStrengthened ConstructionEffortless AssemblyExtraordinary Rain PermeabilityTight Mesh DesignGround Bolt: Brass,Gross Weight: 73.9 lb/33.5 kg,Tension Spring: 304 Stainless Steel,Swimming Pool Size: 20 x 40 ft/6.1 x 12.2 m,Color: Green,Model: YYCM-0097,Swimming Pool Cover Size: 22 x 42 ft/6.7 x 12.8 m,Material: Polypropylene,Surface: Tight Mesh