Ergonomic and Contoured Design - Our ergonomic back support pillow with contoured structure can be placed anywhere along the back of a chair and and fit any height person, just slightly adjust position of lumbar cushion. The pillow is designed ergonomically to relieve upper, mid and lower back pain and back tightness, support you to achieve a healthy posture and helps maintain the natural curve of the spineSupport for Back and Lumbar - This ergonomic lumbar support pillow with contoured structure could help alleviate the pain and discomfort associated with lower back soreness, injury, chronic condition, or simply add a little more lumbar support for those who sit for long periods at work or drive hours-long distancesBreathable and Washable Cover - Back seat cushion with 3D mesh ventilative cover keeps air circulating so sweat and moisture doesn't fill it up. The cover of memory foam lumbar cushion is easy to disassemble, just zip off the fabric cover, toss in the wash with your other clothes, and replace when dry. The easy-clean cover means that you no longer need to worry about getting your office chair back support dirtyUpdated Adjustable Strap - Keeps the back support pillow in place and prevent the office chair back cushion from sliding down, our car back support pillow has a extension strap(45cm) that make the backrest fits perfectly on any office chair, wheelchair, gaming/computer chair, sofa, couch, etc100% Memory Foam Backrest - Made of 100% premium quality high density memory foam that keeps this lumbar support pillow's shape, and provide comfort and relief numbness of your back. Ideal for drivers, teachers, students, people in a wheelchair, office workers, and elder etc