Set includes six 10-ounce bowl Made in France since 1939, by the company that invented tempered glass Duralex is 2;5 times more resistant to breakage and chipping than normal glass, can also withstand sudden thermal shock from-4-degree f to 212-degree Duralex glass is very hygienic: it is non-porous and does not absorb liquids, colors or flavors; Lead free, cadmium free, and BPA free Dishwasher, refrigerator and microwave safe; products maintain the original look for years