About this item 100% Polyester Cover OFFICE CHAIR SEAT CUSHION: Our everlasting comfort seat cushion is ideal for extended workdays. Made with premium memory foam, it supports the butt, conforming to your body for all-day comfort in office chairs or car seats ERGONOMIC SEAT CUSHION FOR OFFICE CHAIR: Our desk chair cushion has a U-shaped coccyx cutout, promoting correct spinal alignment and offering lower back support for office chair use, ultimately relieving back pain CAR SEAT CUSHION: Our seat cushion for office chair use also provides a comfortable seating experience in cars. This seat cushion for lower back pain relief doubles as a car seat cushion, suitable for long travel or commute MULTI-USE SEAT CUSHIONS: Our foam seat cushion fits common office chairs, desks, car seats, airplane seats, and more. Check the dimensions (17x13.2x2.4 inches) to ensure proper fit for your desk chair or car seat MEMORY FOAM SEAT CUSHION: Expect ultimate comfort with our desk chair cushion for long sitting. If unsatisfied, receive a full refund or replacement. Comes with a removable, machine washable, slip-resistant cover for your convenience › See more product details