LARGE - The large cushion is ideal for individuals between 100lb (45.3kg) to 220lb (100kg) Tail Bone Pain Relief Cushion - Ergonomic "U" Shaped Cutout alleviates pressure on the sciatica nerve reducing back, leg, butt, and coccyx/tailbone pain caused by sitting uncomfortably for hours. Whether you use it as a seat cushion for car or chair cushion for desk chair, you will notice the difference. Reliable Orthopedic Pillow This office chair cushion, car pillow contours to your body to promote a healthy body posture while sitting. The memory foam bounces back after every use making this seat cushion your best companion while driving or working for extended periods. Multifunctional and Lightweight - Our Sitting pillow has a non-slip rubber grip bottom and a carrying handle. Its lightweight and portable so you can take it anywhere. You can use it as a car seat cushion, desk chair cushion, wheelchair cushion or a sitting pad for any uncomfortable seat. Superior Quality & Eas