- BEST MEMORY FOAM SEAT CUSHION: Our office chair cushion is designed to conform to the shape of your hips, offering natural support and minimizing pressure on sensitive areas. Ideal for anyone who spends long hours sitting. - PAIN RELIEF: The ergonomic "U" cutout design provides essential support and comfort while alleviating pressure on the lower back, coccyx, and lumbar region. It promotes a Y-position, helping to relieve sciatica symptoms and enhance blood circulation, keeping you energized throughout the day. - COMPATIBLE WITH MOST CHAIRS: This lightweight cushion is versatile and can be used as a car seat cushion, gaming chair cushion, desk chair cushion, or wheelchair seat cushion. It's an excellent travel accessory for comfortable seating wherever you go. - VERSATILE COCCYX CUSHION: Featuring a non-slip rubber bottom for stability, a washable zippered velvet cover for easy cleaning, and a built-in handle for portability, this cushion is designed for convenience and practicality. - GENEROUS SIZE: Measuring 18" x 14" x 1.8", it fits most chairs comfortably. For optimal support, it is recommended for individuals weighing 230 lbs or less, as support may decrease with increased weight. - LIFETIME CUSTOMER SERVICE: Experience the perfect balance of softness and support. Please allow one week for the cushion to regain its ideal shape and 1-3 weeks for complete adjustment to its feel.