This Sae Arc 2-in-1 wooden back stretcher targets, and stretches the three spine curvatures including the thoracic, lumbar, and sacral. It comes with a back cushion for comfort and a riser to provide the extra height needed for a deeper stretch. This daily spine stretching may increase flexibility, improve, poor posture, and ease neck, and back pain due to the misalignment of the spine. handcrafted and made in the USA with red back cushion. Never been used, new with original packaging. Lots of YouTube videos provide information along with manufacturer website.. Items #101 and #301 also available.