SIZE: This set comes with 26 puzzle tiles. Each square measures 12" inches x 12" inches. MATERIALS: This puzzle mat is made of EVA foam. Foam floor mats are made of a thick and soft material. This play mat can protect your child's every step. This puzzle mat has a variety of colorful tiles and all alphabet letters. These patterns make your children interested in learning the alphabet. This floor mats can be freely assembled in various shapes and patterns, which is very interesting. Soft and Easy to Clean: this foam puzzle floor mat is made of quality EVA foam, which is soft to provide a safe play area for children and babies and reduce the possibility of injury, and this patchable crawling mat is waterproof and easy to clean, just use a soft cloth to wipe. Widely Application: this colorful foam puzzle floor mat can be applied as a crawling floor mat for living rooms, activity rooms, yoga rooms, classrooms, etc., and can also be applied as decorations for daycare centers, kindergartens, homes, etc., is a practical puzzle foam mat that the whole family can use.