Sit comfortably in proper posture for extended periods of time with this new back cushion. Its shape mirrors the natural curve of your spine to ensure correct lumbar support. People who experience soreness and tense back muscles will appreciate the comfort this cushion provides. Lightweight and portable, this can be used in an office chair, car seat or wheelchair virtually anywhere you go. Made of high-density foam for long lasting support and durability. Spot clean. 12"Hx22"Wx3"D.