Features:1.Relieves Back Pain-Laying on the pillow will quickly relieve your constant back pain caused by stiff muscles, herniated discs, sciatica, scoliosis, bulging discs, spinal stenosis, and pinched nerves Give yourself the most heavenly, relaxing, back popping stretch your back is craving for.2.Restores Natural Curvature -Restores that healthy, strong, naturalcurvature of your back. Giving you a healthier, confident, and more attractive look Corrects Posture -Easily fixes postural imbalances preventing tired muscles. Which means more eneray to spend on things that actually matter to you3.Improves Flexibility -Enhance your flexibility by decompressing your back while enjoying a deep sleep. Relieving your back pain and tired muscles after the first night Get that sweet back-popping relief in iust a few nights4.Ergonomic and Firmer Support - Upgraded from the triangular wedge bolster pillow that soon flattened out and offers no adequate support, this 3D air mesh lumbar pillow with resilient filling contours to your body curve without deformation, perfect for side, back or stomach sleepers. 5.Adjustable Height- Total thickness could be adjusted by adding a detachable roundel to help improve spine posture, reduce strained back muscles and ligaments in supine, side, and stomach sleeping positions, also can be placed in the calf or between the knees as leg spacer.Notice:Please allow 1-3cm deviation due to manual measurementActual color may be slightly different from the image due to different monitor and light effectMaterial:Mesh+Cotton Size:as shownincludes:1x 3D Lumbar Pillow(with a roundel)