Protect your floors and equipment with Body-Solid Tools Black Puzzle Mats. Rubber flooring is a key component to any workout room or facility both to dampen sound and protect floors. Body-Solid Tools RFBST4PB Puzzle Mats provide both of these benefits thanks to their high-quality Malaysian rubber. Easy to install, snapping edges make installing the RFBST4PB a breeze. Each pack contains four 19.75 pieces of minimal odor flooring, 7/16 thick. When snapped together these mats create 39.5 squares. Each pack of four also comes in a handy retail ready box.