Portable design The Donut Pillow is lightweight and easy to carry, so you can take it with you wherever you need seating support. Versatile uses The Donut Pillow Seat Cushion is suitable for cars, buses, planes, trains, beds, office chairs, or homes, delivering a comfortable work or travel experience. Material and care The Bed Sore Cushion is made of PVC and sponge, providing comfort and breathability. It is washable and quick drying for easy care. Ergonomic comfort The Doughnut Pad uses a scientific ergonomic design to provide comfortable seated support that fits your sedentary needs. Use scenarios Long trips by car, bus, plane, or train to reduce pressure and stay comfortable during travel. All day work or study at a desk, enhancing comfort on office chairs or at home. Resting or recovering at home or in bed, offering support for comfortable sedentary activity.