Precautions.Material: Polyester FiberChair Cushion Round Cotton Pad Cushion Office, Home or Car Seat CushionPlease allow 1-5mm error due to manual measurement.The square seat cushion is made of high quality cotton and remains soft and fluffy. Used to clumping and flatten over time.Size: 45X45CMIt is a very versatile cushion that can be used indoors as a floor mat, dining chair cushion, car seat cushion, seat cushion or outdoor garden cushion.Specification.The color of items shown in the photo may appear slightly different on your computer monitor due to how monitors are calibrated.Sedentary people can relieve tailbone, sciatica, and back pain. Such as office workers, drivers. Also suitable for office chairs, long-haul planes, sitting on the floor.100% Brand New and High Quality!The seat cushion is machine washable and you can easily keep it like new. Note, keep this cushion away from sunlight.1 seat cushionFeatures：