Outfit your whole class with these durable active seats to increase students’ concentration and time spent on-task. The seat bottoms feature domed edges to provide slight instability for a multitude of core-engaging movements. This innovative design lets students silently rock back and forth without disrupting class, rotate the seat 90 degrees in either direction to teeter side-to-side, or use the domed edge as a fulcrum for a core-engaging balancing act. When class is over, TiltED Chairs stack up on an included cart for easy and minimal storage in classrooms of any size. The cart fits up to 24 chairs and glides along most surfaces with 3” casters, 2 locking. Made of powder-coated steel for long-lasting use. Complete Set includes 24 Rainbow TiltED Seats and cart. Seat: 15”H x 17”W; 4 lb. Cart: 18”W x 23”L x 43”H, 17 lb.