It is made of lead-free, heat-resistant, anti-condensation high borosilicate glass, the mug is lighter, more transparent, and has explosion-proof performance at high temperatures. You can immediately pour boiling water into a frozen cup, which is stronger and more durable than ordinary glass. A transparent theme creates a floating feeling, which is an elegant way to float hot or cold drinks in the cup, which will make your drink more attractive.

• The insulation and cold insulation properties of double-walled coffee cups ensure that your fingers will not be burned or frostbitten.
• The 450ml glass coffee cups are made of premium borosilicate glass. These coffee cups can accept temperatures from -30℃ to 150℃, non-toxic, lead-free, scratch-resistant
• Keep your fingers safe and relaxed in this insulated coffee cup; it prevents condensation outside your glass cups. Hold your cups comfortably without getting your hands burnt!
• Capacity: 250 ml or 350 ml or 450 ml
• Suitable For: Tea, Coffee, and Other Hot Drinks.
• It is recommended for daily use in hotels, restaurants, restaurants, clubs, coffee houses or offices.
• Available in 3 Sizes - Please Select Carefully