Much of modern life takes place in a seated position although the human body is designed for movement. The ONGO® Seat strikes a balance between these apparently conflicting needs. Naturally, you can sit on it - dynamically. But you can also move on it: The curved base responds to any shift in weight, activating the body's musculature. It's time to say goodbye to unhealthy habits of sitting still. When you hear the ball humming along the track, you know you're moving in the right direction.
Comes with 3 different marbles for a hum that matches your environment:
Large height adjustment range. Rocking base, comfortable and durable upper seating surface.