This lightweight floor mat has an interlocking puzzle design for simple set-up, easy cleaning, compact storage, and customization for any space. Its non-slip surface protects floors while providing support and cushioning for any surface. The set includes interchangeable edging pieces for a smooth border. Tiles are reversible so your child can play along with Elsa, Olaf or choose a solid option. Buy more packs to cover more square footage! Gender: unisex.