Corelle Winter Frost White 6-3/4-Inch Plate Set (6-Piece) Corelle Winter Frost White 6-3/4-Inch Plate Set includes six 6-3/4-inch plates. Features a fundamental, basic style thats perfect in its simplicity and pure in form. Plates are made with Corelle triple-layer strong glass, which is lightweight, stackable, and resistant to chips and breaks. Dishwasher safe and can be used in an oven or microwave. Corelle glass is made in the USA, and comes with a three-year limited warranty against manufacturer defect.