Material: plush + PVC liner Size: inner diameter cm, outer diameter 38cm Color: dark blue Compatible with: Prolonged Sitting/Bed Sores/Fractured Coccyx/Tailbone Pain/Pelvic Floor Pain/Pregnancy Package content: 1*inflatable cushion, 1*pump Our seat cushion is a pillow compatible with hemorrhoids; donut pillow compatible with pregnancy; donut pillow compatible with coccyx discomfort; and medical donut cushion. You can take it anywhere you want to go. Plush + PVC liner material conforms to your body for superior cushioning while resisting punctures and leaks. Holds weight up to 198 lbs. Fast inflation by mouth or with the included air pump. Other cushions are difficult to inflate and can leave you feeling short of breath. With our included air pump, you will always be able to inflate your cushion quickly. The cover of this cushion is made of polyester fiber which is hypoallergenic and can be cleaned to provide a clean cushion for you. The built-in inflatable mouth, different from the metal mouth, avoids the patient discomfort of using it. This cushion is for travel. The complete set fits into the carry bag provided so you can take it wherever you go You can use it in the home, office/work, on holiday, car and airplane.