Founded In 1939, Duralex Has Been Manufacturing Tempered Glassware And Tabletop Products For Over 80 Years In La Chapelle-Saint-Mesmin In The Very Heart Of France. Since 1939, When Duralex Invented The Glass Tempering Process, The Name Duralex Has Been Associated With Toughened Glassware, Utilizing Their Proprietary Process. Duralex Is And Will Always Remain A True French Manufacturer Of Glassware And Tabletop Products, And Is The Only Glass Manufacturer That Makes 100% Of Their Products In France. Tempered Glass Ramekins, Ideal For Preparing And Serving Cheese Or Egg Dishes, Poi, Desserts, Garnishes, And Condiments. Duralex's Tempered Glassware Can Withstand Sudden Thermal Shock From -4°F To 212°F. Extremely Durable, Impact And Chip Resistant. Dishwasher And Microwave Safe. Made In France.