VEVOR Inground Pool Safety Cover, 18 ft x 34 ft Rectangular Winter Pool Cover with Left Step,  Triple Stitched, High Strength Mesh PP Material, Good Rain Permeability, Installation Hardware Included18 ft x 34 ft Pool CoverHigh-Quality PolypropyleneStrengthened ConstructionEffortless AssemblyExtraordinary Rain PermeabilityTight Mesh DesignGround Bolt: Brass,Gross Weight: 56.2 lbs/25.5 kg,Tension Spring: 304 Stainless Steel,Swimming Pool Size: 16 x 32 ft / 4.88 x 9.75 m,Color: Green,Model: YYCM-9622,Swimming Pool Cover Size: 18 x 34 ft / 5.49 x 10.36 m,Material: Polypropylene,Surface: Tight Mesh