Ergonomic office chair balls:
The "Fit Ball" and the "Deluxe Ball" chairs promote active sitting which helps strengthen the back & core (abdominal/trunk) areas and thereby improves your posture. These are desk chairs offering considerable comfort.
Sitting on the ball chair while working at your desk relaxes back muscles, reducing back pain. The exercise ball chair helps you burn calories while sitting and working at your desk.
Balancing on a ball chair compliments yoga and pilates exercises.
Sitting on these "Swiss Balls", placed in frames is extremely comfortable, the give of the ball takes all the pressure off your tail bone thus eliminating back pain.
The balls can be removed from their frames and used for floor exercises.