Duralex invented the glass tempering process in France in 1945 and has remained the popular paragon and leader in manufacturing all-purpose, classic, heavy duty drinking glasses ever since. Now, Duralex's loyal army of fans can rejoice with these Jazz French drinking glasses. Not only will you get the legendary quality and durability, but a beautiful, simple design has been cut into the glasses to add style to your table setting. Lovers of beautiful lead-free glassware will be sure to view them as a solid investment. The new Jazz collection features vintage-styled, vertical ribs that are designed to naturally play with light. The tempered drinking glasses are made to withstand heavy duty use and still remain crystal clear and because they are equally suitable for cold and hot drinks, they can go straight from the refrigerator to the microwave.