Ergonomic Design for Pain Relief This 2-in-1 seat cushion provides ergonomic support for the tailbone, relieving sciatica pain, and helps reduce lower and mid-back pain, muscle tension, arthritis, and stiffness caused by stenosis. It’s the perfect cushion for improving overall comfort and supporting better posture. Memory Foam Made from high-density, durable memory foam, this cushion is odor-free and offers medium firmness with quick rebound. It absorbs pressure on the spine and supports the hips, allowing the back to fully relax and relieving stress from long periods of sitting. Universal Use Ideal for use on various types of chairs, including office chairs, kitchen chairs, car seats, airplane and train seats, or wheelchairs. Perfect for office workers, truck drivers, frequent flyers, and pregnant women who need to sit for extended periods. L-Shaped Ergonomic Design The cushion offers a perfect balance of comfort and support, reducing fatigue and promoting healthy posture. It significantly improves back pain relief during long sitting hours, providing the necessary support that a regular cushion cannot. Non-Slip Bottom for Secure Placement The cushion features a non-slip material on the back to ensure it stays in place on various surfaces like chairs, sofas, or car seats, even with movement. The removable cover is washable and easy to maintain. Product Specifications Material: High-density memory foam Design: L-shaped ergonomic support Use: Suitable for office chairs, kitchen chairs, car seats, and more Cover: Removable, washable Non-slip: Yes, for secure placement on various surfaces Hardness: Medium firmness with quick rebound Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.