Duralex - Manhattan Clear Old Fashion Glass 310 ml ( 10 7/8 oz.) Set of 6 Capacity 10 7/8 oz, Diameter 8.4 cm, Height 8.5 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.