Ideal for indoor playrooms, this Interlocking Foam Play Mat is easy to assemble! Simply fit each mat together like a puzzle piece. Mats are easy to clean and require no tools at all. There are 9 pieces per package. Comes in assorted colors. Each piece measures approximately 11 1/2" x 11 1/2" x 1/4". Total measurement is approximately 3' x 3'. Comes shrink wrapped.