Sivan Health and Fitness Puzzle Exercise Mat High Density Rubber Top Interlocking Gym Tiles - 24 Sq Ft Item Includes 6 tiles and 12 border edges  Interlocking gym tiles cushion hard floor surfaces in playrooms, classrooms, gyms, and more Each grey-speckled tile has two detachable edge pieces which allows any tile to be a corner, border, or center piece Non-skid matting surface that also has exceptional cushioning properties of a foam floor mat Made out of high density soft rubber for the greatest durability and comfort  Can easily hold the weight of heavy machinery for ultimate safety and protection 6 grey-speckled square tile pieces  each piece measures approximately 24x 1/2x 25