Comfortable back support: The mesh back support with massage particles provides an itchy massage function and can relieve your back/lumbar stiffness effectively^ Easy installation: The back of the chair desk is light and easy to handle. transport. Mesh back support with elastic straps, which can be installed in minutes and connects mesh lumbar support to the office/car seat chair^ Office chair backrest: This chair back cushion uses an adjustable belt, which is very easy to remove. install, suitable for; almost all types of seats, including car, home, school, office chairs, etc.^ Ergonomic design: our office chair back support can keep your spine aligned and help to relieve spine pressure, reduce back pressure when working or relaxing, relieve back pain and correct posture^ After-sales service: you will get support customer to; 100% and quality assurance. of this lumbar pillow. For a better shopping experience, if you have any questions, please feel free to contact us. contact us