Perfect for use in a variety of applications including collaboration spaces, lobby areas, meeting rooms and personal workspace. Designed with a 17 1/2 anti-burst exercise ball, this chair provides an active seating experience that may potentially increase concentration and retention while potentialy helping to promote better posture and balance through building core muscle strength. Fully inflated seat height is 23 , height will lower when occupied. Powder coated steel legs and stationary glides for stabilility. Pump included. Recommended Applications General Office Task; Breakroom Hospitality; Guest, Reception, Waiting Room Lounge; Conference, Training Meeting; Healthcare; Seat/Back Color Black; Arms Included No; Overall Height Maximum 23 .