Runtz™ ball chairs are a unique seating option that helps to encourage active movement as well as better posture and balance. Specially designed for children, this chair is great in school or home settings as well as waiting rooms, and the vinyl option is especially easy to clean. Supported by four legs to provide a sturdy base during movement. Legs are powder coated for long-lasting durability and to provide resistance against chipping and scratching. Fully inflated, seat height is 17" and will lower when occupied. Available in five color options. Pump included with ball chair.