Standard sized rattan cushions are available in many different sizes. It is very important to measure accurately to insure a good fit. Please measure the furniture itself, not the old cushions because the old cushions probably have flattened out over time. We use a high density foam for the seats and loose poly fill for the backs. All seat cushions are rectangles with no curve on the back of the cushions. Back cushions have either a straight top or are curved on the ends of the top. These cushions cannot be used outdoors. Most importantly these cushions are custom made so they are not returnable, please call if you have any questions or with any special requests.