14+ Balance Ball Chair Base Gif. The base swivels in order to allow you to rock back and forth, twist and turn, and generally stretch normally achy legs. 4.1 out of 5 stars 437.
The back two wheels lock to keep the chair in place.
What is a balance ball chair? The back two wheels lock to keep the chair in place. The ball is put into the seating area and inflated. Welcome to the world of active sitting and a chair that just might change your life.