Description Safe and Materials: The soft and durable material conforms to your body and offers excellent cushioning, Highly elastic PVC liner while it resists punctures and leaks. Easy to Inflate-Take Anywhere:Fast and easy inflation by mouth or with the included air pump.This cushion is small You can take it anywhere you want to go.You can use it at home, office / work, on vacation, in the car and on the plane.Relieves pressure and provides comfort,It is important that you are comfortable wherever you sit. Relief the Pain:Take control to relieve lower back pain, hemorrhoids, pressure sores, butt pain, ischial tuberosity, prostatitis, coccyx pain, pilonidal cyst, herniated disc, pain from child birth and pregnancy pain.Great For Any Chair, Car Seat, Truck Seat, Wheel Chair, Plane,anywhere you need to sit comfortably. Size: About 14.96/ 38cm, Inner diameter: About 4.72 / 12cm, height (when inflated): About 3.54 / 9cm. Easy to Clean:The cover of this cushion is made of polyester fiber which is hypoallergenic and can be cleaned to provide a safe and clean cushion for you.As an added bonus, our cushion is made latex free. No toxic rubber smell like our competitors products.The built-in inflatable mouth, different from the metal mouth, avoids the patient discomfort of using it. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.