About this item

• Are 100 percent flame proof and can be used directly on the flame
• Can be safely used in the microwave, oven, fridge, freezer, and dishwasher
• Unlike plastic or ordinary glass, will not leach chemicals into your drink even after repeated usage
• Are harder and tougher than ordinary glass. Retain perfect clarity, unlike regular soda lime glass, will not turn cloudy with repeated usage
• Are scratch resistant. Nonporous glass will not absorb stains or odors