This Bosmarlin Extra Large Ceramic Coffee Mug is perfect for office and home use. With a large capacity of 23 oz, it is made of lead-free, cadmium-free, high quality ceramic and is suitable for hot and cold drinks. It is also dishwasher and microwave safe. The big handle prevents the mug from rotating when you hold it, making it comfortable to use. The unique reactive glaze technique gives each mug a special look, and the four stylish colors make it a great gift for any occasion. If you have any problem with the mug, just contact us and we will make every effort to solve it. Enjoy your tea or coffee with this stylish and durable mug!