Foam cushions help support the body during prolonged periods of sitting. If you are seated for an extended period of time, it is important that your legs and back are both supported. Foam back cushions are placed on the back of a chair in the lumbar area to prevent poor posture that can cause pain and stress on the back. Foam seat pads cushion the tailbone and help prevent pressure sores. Foam cushions are available with a flat surface or a contoured surface. Regular flat cushions are ideal for using on wheelchairs or standard chairs. The contoured style provides increased leg support. If you have a bruised tailbone or other tailbone issues, using a ring-shaped cushion or a sloped coccyx cushion takes pressure off of the sacral area to help it heal. All of these products are ideal for home or office use.