Sitting on a ball versus a chair

Since I hurt my back on Saturday I have been sitting on one of those large blue balls.

It is much better than a regular chair, my back isn't feeling all crazy on me and I can adjust to the exact right spot that doesn't hurt.

I did a little research on this and found a ball chair which looks really cool and would probably help with the fact that it is hard to get off the ball and such.

The ball is supposed to be better for your back, even when you haven't just hurt it. I recommend everyone give it a try.