The play mat includes 6 fun friends sandwiched inside the water chamber...starfish, octopus, sea horse, turtle and 2 fish. A fun activity to encourage tummy time! Simply fill the inflatable edge of the mat with tap water and kids can have hours of tactile and visual fun! The play mat is made from heavy gauge plastic which resists leaks and tears. Measures 20" x 17" It folds flat when the water and air are let out which makes it a great take-along toy that easily fits into a diaper or toy bag. Recommended for babies ages 3 to 18 months.