The body and mind are designed for dynamic movement. When Virco's ZUMA® rockers are in the house, the combination of gentle movement and flexible support helps encourage healthy movement while sitting. The chair features a sturdy, cantilevered tubular steel frame that allows for controlled back-and-forth motion. Perfect for desk or side chairs for your home or for classrooms, libraries or other learning environments. The 18" seat height is an ideal size for 5th Grade - Adult.