Our valance covers are heavy-duty tarps with an extra flap on all four sides to go over the edges of a canopy frame. Fiber reinforced 14 Mil Polyethylene 14 x 14 Mesh Count 1200 Denier 8 oz/sq. Yard Approximately 18 Inch Grommet Spacing Pull Ties At All Four Corners 3 Ply Material UV Resistant Waterproof Rot & Mildew Proof Acid Resistant Tear Resistant Arctic Flexibility.