Features: backrest helps to prevent and relieve back pain the s-shaped polyurethane frame conforms to and supports the natural curve of your spine to promote proper sitting posture an adjustable and removable lumbar pad can be used to fill in the curve in the lower back for added support lightweight and portable can be used anywhere you sit whether its in your car home or office color: black dimensions: 31in high x 7in deep x 18in wide split the highback backrest support is designed with removable adjustable lumbar pad to suit your individual needs. Designed with extended neck and head support.