Gibson Overseas, Inc. Gibson Studio 94911.12 Party 12 Piece Melamine Dinnerware, Rainbow Circles, 12Pc Set Festive heavy weight melamine which is a plastic material Durable: break resistant, chip resisted and scratch resistant Ideal for indoor/outdoor everyday use Service for 4 includes for of each: 11" dinner plates, 9" salad plates, 6" bowls Dishwasher safe but hand wash recommended