Duralex is the specialist in the design and production of tempered glass tableware since 1945. More than ever, it is synonymous with toughness, design and everyday practicality. The Provence glass is one of their best known glasses, recognised by its unique shape and curves. They are seen in hotels, bars, restaurants and homes all over the world. Fits perfectly in your hand and suitable for any drink. These glasses are extremely strong and are tempered by heating them to 700 degrees. Stackable so easy to store. If the glass does break them it is designed to break into blunt fragments, much like a car windscreen. Suitable for children's drinks, wine, juice and much more! Dishwasher and microwave safe, shock and chip resistant.