Thanks to its special shape, the heated wedge cushion OL 350 with lumbar support from Medisana helps to improve sitting posture by actively stimulating the back muscles and preventing incorrect posture of the spine. The upper, height-adjustable cushion serves as lumbar support and can be removed if necessary. The switchable heat function promotes blood circulation in the muscles and has three temperature levels. For added safety, this back cushion is equipped with overheating protection and for hygiene reasons the cover is removable and washable.