We Sell Mats 24" x 24" x 3/8" Premium Interlocking Carpet Tiles Constructed of premium high-density EVA foam and an ultra-durable carpet surface Each EVA foam tile measures 24" x 24" and is 3/8" (10mm) thick Each tile comes with two detachable border pieces, allowing you to finish your assembly with a straight edge Assembles in just minutes over any hard, flat indoor surface - assembly over carpet is not recommended Can be assembled as whole tiles or you can easily trim tiles for wall-to-wall installations