Duralex - Prisme Tumbler 330 ml (11 5/8 oz.) Set of 6 Capacity 9 5/8 oz, Diameter 8.1 cm, Height 12.5 cm. Duralex,shock resistant tempered glass, is 2.5 times more resistant to breakage and chipping than normal glass, Can also withstand sudden thermal shock, from -4 F to 212 F Duralex glass is very hygienic. It is non-porous and does not absorb liquids, colors or flavors Dishwasher, refrigerator and microwave safe. Products maintain the original look for years. Made in France.