This Bosmarlin Large Ceramic Coffee Mug is perfect for office and home use. With a large capacity of 18 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 it a simple yet classic design, and it comes in four stylish colors, making it a great gift for any occasion. If you have any problems with the mug, just contact us and we will make every effort to solve it.