Thank you for viewing. This is a balance ball for children. Purchased on Amazon. Used for 2 months. It has handles, so you can ride it and move forward by bouncing your feet. It seems to be for ages 3, 4, 5, and 6, so perhaps for children from the youngest to oldest kindergarten classes? An air pump is not included, so please use a commercially available pump-type one, such as those found at 100-yen shops. Toys Kindergarten Indoor Ball play