This glass coffee mugs are made of heat and condensation-resistant borosilicate glass, which is stronger and more durable than common glass and has a smooth finish.

The double-walled glass with a handle has a good heat insulation effect. It prevents hot beverages from burning fingers and maintains the beverage's temperature for longer than ordinary single-layer glasses and ceramic mugs.

The bottom of the glass coffee cup has a small round hole, which allows the glass to breathe during processing to prevent the glass from breaking. It's sealed, and water will not flow into it.

100% lead-free, PBA-free, double-layer insulation design is very suitable for coffee and tea lovers. Excellent quality can withstand -20~150℃/ -4~302°F Low high temperature, no scratches, handmade.Borosilicate glass is easy to clean and durable.

These glasses are a beautiful addition to any cafe, restaurant, pub, or home. And are perfect mug for drinking tea, latte, espresso, juice, or water.