The kids Ergo Active Seating offers students the benefits of movement without much distraction. Great for fidgety students, students with doctor's notes, students in time out or students needing a break. Try them in your PE class today. Extremely durable and long lasting. <br> <br> Designed for children ages 4-9 with a weight limit of 170 pounds. Seat measures 15" high and 14" in diameter.