Made of non-toxic, lead and latex free, high density EVA foam, safe and soft. Classic puzzle tiles with printed faux wood finish perfect for enhancing the appearance of your indoor space. Versatile interlocking tiles allows to remove or reconnect pieces according to furniture style or exercise necessity; more mats can be added anytime. Easy Assembly - Lightweight puzzle pieces connect quickly and easily, and can be disassembled just as simply for quick storage. Detachable border pieces allowing you to finish your assembly with a straight edge. Package includes 16 interlocking foam mats + 16 borders; Each measures 1' x 1' x 3/8", covers 16 SQ. FT.