Coccyx Seat Cushion for Office Chair, Sciatica Pain Relief Tailbone Cushion with 3D Mesh Surface

Ergonomic Design: Made of high-density space memory foam with a high-quality cotton shell and zipper.Non-slip bottom design ensures stability on any seat. Applicable Size: Seat cushion size is 17×15×4 inches, lumbar support pillow size is 17×15×4.7 inches.Adjustable strap for various chair sizes. Relieve Hip Pressure and Back Pain: Ergonomic curve fits adult body shape, doughnut-shaped design conforms to human engineering, effectively alleviating low back pain, sciatica, and other issues from prolonged sitting. Versatile Use: Ideal for office work, driving, traveling, gaming at home, or adding to wheelchairs for comfort. Convenient to Use: Removable and machine-washable covers. Adjustable strap for personalized comfort.