Made in France Since 1939 Impact & Chip Resistant, Extremely Durable Duralex Tempered Glass is 25 Times Stronger Than Ordinary Glass | Duralex Glass is Very Hygienic: It is Non-Porous and Does Not Absorb Liquids, Colors or Flavours. | Classic Design Updated with Food Safe and Organic Colors Lead Free, Cadmium Free, and BPA Free | Shock Resistant Manufactured to Withstand Sudden Temperature Extremes From -4 Degreef to 266 Degreef and Is Suitable for Hot or Cold Liquids | Stackable Duralex Glasses and Bowls are Stackable for Convenient and Space Saving Storage Hygienic Nonporous Duralex Glass Does Not Absorb Liquid