[Ergonomic Design] - Tailbone Pain Ergonomic Donut Pad adopts three contour designs. Concave end design reduces pressure on tailbone. The hollow design lifts your body, stabilizing and aligning your spine. Front: Concave design to relax the legs. Allows you to maintain your ideal sitting posture for a long time without any pain in your back and lower body [High Quality Memory Foam Cushion] - Tailbone Pain Donut Cushion is made of high-quality high-density rebound memory foam, providing strong support to the buttocks. Will not flatten and remain soft after long-term use. The pillow has a heat-sensitive function that senses body temperature to fit the curves of the body for optimal comfort and pain relief [multi-scenario use] - If you are troubled by hemorrhoids and tailbone pain, you will benefit greatly from a well-designed pillow. Pillow for Tailbone Pain. It can be used as a donut cushion to relieve tailbone pain in the home office or as a car seat on the road. Wheelchair seat cushion, so no matter where you sit, the cushion can relieve pain in your lower back, anus, rectum or buttocks [High Quality Material] - Size is 45*41*7 cm, has non-slip backing to prevent slipping. The tailbone pad is made of breathable mesh, which does not absorb heat and makes you feel comfortable and cool while sitting. Removable and machine washable. When you need to freshen up, simply remove the pillowcase.