Brighten any space with this swivel ball chair. The swivel motion and\/or rocking may allow for more active fidgeting throughout the day. The 360° swivel base with active, user-controlled movement; designed to help support better posture and balance. Includes rubber molded into base, so chair does not slip. Great for use in home offices, schools or waiting rooms. Pump included with ball chair. Part of the Safco Active Collection: The Safco Active Collection products are designed to promote active movement throughout the day to help combat the negative effects of inactivity in many workplace settings. Includes an anti-burst, exercise ball. Seat height may lower while occupied.