Not only do Body Sport Interlocking Floor Tiles protect floors from gym equipment and heavy traffic, but they also protect clients and members from slipping thanks to their secure traction. The 1/2in-thick mats fit together in a simple puzzle pattern and can be installed easily and quickly. Just place them over your existing surface - wood, concrete or carpet - and lock pieces into place. Each package comes with six 24in x 24in tiles and 12 border pieces.