We Sell Mats Uppercase 84 Sq. Ft Alphabet and Number Floor Puzzle-Each Tile 12"x12"x3/8" Thick with Borders plus 48 plain tiles. Safe, non-toxic and independently tested FREE of Lead, BPA's and PVC. The individual 12" foam squares are colorful, washable and provide a cushioned surface. Includes 26 uppercase letters and 10 numbers that pop out for hours of learning fun + 48 plain tiles Straight borders included give the mat a finished look. Use the plain tiles to customize your mat. Covers up to 84 sq. ft. (approx. 9' x 9' area) and made of high density EVA foam 10mm (3/8" thick)