Temporary protective cover for patio furniture, picnic table, grill, air conditioner, sandbox and firewood. Also great as a lawn, garden, construction and repair cleanup aid. UV Inhibitors Yes, Grommet Spacing ft. 2, Grommet Material Rustproof, Material Thickness oz. per Sq. yd. 2.8, Material Type Polyethylene, Dimensions L x H ft. 40 x 60, Water Resistant Yes, Color Blue, Material Thickness mils 4-5, Mildew Resistant Yes.