Come and Check Our Promo Solutions.The christmas tree mug is made of t borosilicate glass, heat and cool resistant temperature ranges from -20 degrees - 130 degrees. A crystal clear look allows you to see the liquid clearly, full of artist.The funny mug is suitable for all kinds of beverages, such as coffee, milk, espresso, tea, etc. The small mug has a capacity of 13.5 ounce, and the large one has 16.9 ounce, they are large enough to meet your daily need. Pls check inventory and detailed info with us before placing your orders.