This adorable puppy ball play pen is a wonderful way to entertain your child at home or on the go! It pops up and includes 4 foam posts that form the enclosure to keep the 10 colorful balls from rolling too far away. The cute blue puppy ball play pen comes with a travel bag for storage. Nylon, polyester and plastic. 26"Dia. x 7 1/2"H. Ages 3-36 months.