Safety Pool Cover 18x36 Ft Rectangular In Ground Clean Winter Cover Mesh Reasonable Size High-Quality Standard Easy to Assemble Superior Protection Rain Permeability Tight Mesh Design Ground Bolt: Brass,Tension Spring: 304 stainless steel,Pool Cover Size: 20x38 ft / 6.1x11.6 m,Suitable Pool Size: 18x36 ft / 5.5x11 m,Center Step Size: 4x8 ft / 1.2x2.4 m,Color: Green,Model: CT2038,Material: Polypropylene,Product Dimensions: 20x38 ft / 6.1x11.6 m,Weight: 60 lbs / 27 kg,Surface: Tight Mesh