The way to strengthen your back – without actively exercising – the 33cm Sissel Sitfit is an air filled sitting aid and balance pad.
As a sitting aid, the Sitfit offers comfort and relief to its user by enforcing a better posture. At the same time it exercises the back muscles and the pelvic floor.
It can also be used for more active exercise, to build foot and leg muscles and improve balance. An exercise poster is included illustrating the many uses of the Sitfit.
The Sissel Sitfit comes inflated to the prescribed pressure, however if you want to add more air now or in the future you will need a needle pump which is available here