Gibson Home Zen Buffetware 16 Piece Dinnerware Set, White Zen Buffet ware 16 pc Dinnerware Set Dishwasher and microwave safe Square Shape. Fine Ceramic Construction Porcelain material. Plates Dimension: 10.75 Inch Dinner Plates, 8.5 Inch Dessert Plates, 8 Inch Soup Plates Service for 4