The revolutionary material is a special three-layer glass laminate called Vitrelle Glass, originally designed as a material for American TV screens, which is characterized by: RESISTANCE,COMFORT,EFFIZIENCE: The material is resistant to breakage, chipping, scratches and discoloration, it is microwave, oven, refrigerator, freezer and dishwasher safe, and it is dishwasher safe. Crockery can be stacked to save space. Color: Mystic Grey