Greatmats Interlocking Foam Mat 2' x 2' x 5/8" (Navy Blue, 25 mats - 100SF - (each mat 24"x24"x5/8")) Premium quality mats made from EVA foam. Waterproof, lead free and latex free Interlocking 2X2 ft x 5/8" tiles, border strips included Wide range of brilliant colors available. Mix and match to create any layout or design. Easy installation, no adhesive required