Ergo Curve Portable Back Cushion Seat Supports This exceptional feature encourages users Discount Eligible NonMAP This exceptional feature encourages users to adopt a comfortable saddle posture that not only supports a healthy lumbar spine but also reduces pressure points This foot machine stimulates lower leg muscles and increases blood circulation by raising the feet and relieving pressure on the lower back The strap can be moved to use either side of the support as the “top” or “bottom” for maximum flexibility Simply hand the molded visco elastic memory foam lumbar unit on your seat with the attached weighted strap and adjust as needed for superior lumbar support