This product is designed to support the normal lumbar curvature while you sit. For people who get increased low back pain while they sit this product may be of help. Studies have shown that sitting places up to a 400 percent increase in pressure on the discs of the low back. Sitting with good posture can reduce this pressure. This cushion can be used in your car, at home, or at the office. Place this product in the small of your back and sit completely back in your chair to feel the difference!