Fomis donut cushion is designed to decrease pressure points and provide you with a comfortable sitting experience in any setting. It has a center cut-out as well as cut-outs in both the front and the back, ensuring your tailbone and bottom dont touch the sitting surface, improving blood circulation, and preventing discomfort and soreness. This helps relieve hip and back pain, pregnancy & postpartum-related pain, herniated discs, sciatica, an injured tailbone, pressure sores, hemorrhoids, and numbness. The contoured shape gently cradles your buttocks and the back of your upper thighs, distributing weight evenly, as well as providing additional back support which promotes proper posture and spinal alignment. Made from high-density memory foam, Fomis donut cushion maintains its shape even after prolonged use, ensuring it provides support for all-day use, and for heavier users as well. Its breathable, velour cover is made with tiny holes to improve circulation and prevent the buildup of moisture and sweat, making it the ideal choice for lengthy use. The non-slip bottom keeps the cushion in place. The built-in handle makes it easily portable. At 18 x 16 x 3.5, it fits most chairs. Perfect for use in the office, car, wheelchair, kitchen, or dining room chairs. Easily maintained. Simply unzip the removable cover and place it in the washing machine or hand wash it for a fresh and clean sitting. Enjoy its comfortable and therapeutic effects worry-free!