[ERGONOMIC DESIGN] - Coccyx Pain Ergonomic Donut Pads come in three contour designs. The concave end design relieves pressure on the tailbone. The hollow design lifts your body to stabilize and align your spine. Front: Concave design, relax legs. Allows you to maintain the ideal sitting position for a long time without any pain in the back and lower body [High Quality Memory Foam Pads] - Coccyx Pain Donut Pads are made of high quality high-density rebound memory foam to provide strong support for the buttocks. Does not flatten out and stays soft after long-term use. The pillow is heat-sensitive, sensing body temperature to conform to the body's curves for optimal comfort and pain relief [Multi-scene use] - If you are troubled by hemorrhoids and coccyx pain, you will benefit from a well-designed pillow for coccyx pain. It can be used as a doughnut cushion to relieve tailbone pain in the home office, or as a car seat on the road. Wheelchair cushion, so no matter where you sit, this cushion can relieve pain in your lower back, anus, rectum or buttocks [High Quality Material] - The size is 45*41*7cm and has a non-slip backing to prevent slipping. The tailbone pad features a breathable mesh that does not absorb heat, allowing you to sit comfortably and cool. Removable and machine washable. When you need to freshen up, just remove the pillowcase.