This Double Wall Glass Coffee Cup from CORATED is made of high borosilicate glass, perfect for any occasion. With a heat resistance temperature range of -30℃ to 150℃, it is both s and lightweight, making it comfortable to hold. D, the clear glass adds an elegant touch to your coffee experience. The double-walled glass with internal vacuum insulation keeps your drink at the perfect temperature while protecting your hands from heat. Use it for your afternoon tea, espresso, latte, or hot beverage. This crystal-clear mug i a great gift and comes in a beautifully wrapped box, perfect for special occasions.