6 months & up. A wonderful tummy time mat that is made of durable rainbow colored vinyl. Includes 6 clear vinyl pockets (4" x 6") to insert pictures for inquisitive tots plus features a flexible 9-1/2" center mirror where babies can see themselves. The colorful tummy time mat also has strong dirty resistance and is easy to clean, saving your time and energy. 36"L x 36"W.