WTF is this, right? I saw it in an office the other day and the woman who was using said "Oh- did you see me bouncing around on my chair??"
No, I hadn't. But I was instantly intrigued.
She went on to explain that she's a trained dancer and is trying a bunch of techniques to get back in shape. This chair is supposed to help your "core".
Well, if anyone knows me, they know how serious I am about training my core.
I WANT this chair.