This inflatable baby water mat is made from environmental PVC materials, no harmful to your baby's health LARGE SENSORY WATER MAT: 26" x 19", this infant tummy time mat has a large area to play, helps strengthen baby鈥檚 leg and arm muscles to prepare to crawl, this fun sensory mat baby can also delight.http://www.senmartbatts.com/wa....ter-play-mat/sprinkl