The size of donut pillow is 17.4 inchx 13.39inch x 2.64 inch. The surface layer is made of comfortable and breathable fabric, and the core is memory foam. The memory cotton inner core has enough support and resilience, which can make you more comfortable and will maintain shape even after many uses.. cushion can bring you comfort that ordinary cushion cannot provide, and of your body with even more care. The donut cushion shape with ergonomic inchUinch shaped incisions, use to reduce hip pressure, effectively reduce tailbone pressure, thereby reducing hemorrhoid pain, relieve the discomfort caused by sedentary. perfect for pregnant women, post-operative rehabilitation, office workers and other people. If you give it as a gift to family, friends, boss, clients, or colleagues, they will all appreciate the care you took in choosing their gift. The donut cushion can be used anywhere, can be taken anywhere, and can be used for any type of chair, such as wheelchair, office chair, airplane, car, game grandstand, dining chair, etc. You 't have to worry about the seats making you feel uncomfortable, just have a donut cushion to comfortably sit in various seats. The cushion is suitable for all and matches many kinds of chairs or seats. It provides comfortable support for sedentary people. Whether , in , in the car, on an airplane, or in a wheelchair. Whether at work or play, the cushion provides a comfortable support for your back and tailbone. The donut chair cushion is both soft and breathable, with good support and not dented. If you give it as a gift to your family, friends, boss, customers and colleagues, they will love it. Color: Black Material: cotton Package Contents: 1 x Donut Pillow Seats 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.