Improve your circulation & ease back tension. A great alternative to back and body massage when rolling over the ball. The surface of the Sensa Ball is covered with sensory nodes that help increase proprioceptive feedback and improve circulation. The sensaBall can also be used as a conventional chair or for stretching routines. The smaller size makes a great foot stool for tired and aching feet. It is ideal for seating, exercise, rehabilitation and can be used with duraDisc, airRoller, medicineBalls, BallWeb and weights to gain a more challenging workout. The Sensa Ball has been tested to ensure product consistency and evaluate new manufacturing protocols. These Swiss Balls have variously supported static loads well in excess of 4,000 kilograms with burst-resistance to a load of 1000 kg. This does not mean puncture proof but helps protect you from explosive deflation. SensaBall retains its shape under heavy loads, maximising the body's stabilisation process. SensaBall has been designed and manufactured in Australia.