Posture Correction: The innovative "W-shaped" hollow design promotes proper spinal alignment by taking pressure off the coccyx and evenly distributing weight in the sitting area. This helps prevent hunching and supports the natural curve of the spine Memory Foam Comfort: Made with premium Memory Foam that adapts to the contours of your body, providing comfort and support. The memory foam responds to pressure and quickly returns to its shape, ensuring long-lasting comfort Portability: The lightweight and portable design allows you to take it with you. Whether you are at home, in the office, or traveling, you can easily carry and use the cushion for all-day comfort and support Easy to Keep Clean: The cushion is removable and machine washable, making it easy to keep clean. The non-slip bottom ensures that the cushion is firmly fixed and provides a stable seating experience Colour:Gray Material:Memory Foam Package Contents: 1x Seat cushion Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.