Whether you're drinking your morning coffee, evening tea, or something in between – this Christmas Tree Insulated Glass Coffee Mug is for you! But why it's so cool? This Christmas Tree Insulated Glass Coffee Mug is a fun and playful way to enjoy your favorite holiday beverage. Your drink will literally float in this charming cup. A blend of modern design and holiday vibes. Fill this mug with festive coffees, hot cocoa, or just put him on a shelf. Or go ahead & create a Make Your Own Hot Chocolate gift pack with this cute mug! This Christmas Tree Insulated Glass Coffee Mug is made of borosilicate glass, known for resistant to thermal shock more than any other common glass. Borosilicate glass has a wide variety of uses ranging from cookware to lab equipment, as well as a component of high-quality products. Product details Capacity: 10 oz / 300 ml Size: 4.25 x 4.33 inches / 10.8 x 11 cm Do not heat in a microwave oven!