Description: Material & Size The Seat Cushion is made of polyester, with PE filling, comfortable and breathable, washable. Sizes are 37x37x5.5cm and an inner diameter of 15cmOpen Hole Design: The hole on the Donut Cushion allow air circulation, providing a more comfortable and dry feeling. It is very suitable for people who are bedridden for a long timeComfortable DesignThe Doughnut seat cushion chair pad with ergonomic design, which is comfortable and meets your sedentary needsPortable Design: The Donut Pillow is lightweight and easy to carry. It can be carried wherever you need it, making it more convenient to meet your needsMultiple UsesStuffed Donut Pillow Seat Cushion can be used anywhere there are seats, such as cars, buses, planes, trains, beds, office chairs or homes, allowing you to have a comfortable work or travel experience Specification: Material:Polyester, PE Filling Size Chart: 37cmx37cmx5.5cm/14.57inchx14.57inchx2.17inchHole Diameter: 15cm/5.91inchx5.91inch Package Includes: 1 Piece Seat Cushion Note: Please allow slightly errors due to manual measurement and different monitors.