This ceramic coffee mug set is perfect for office and home use. With a capacity of 17 oz, it is made of lead-free, cadmium-free, high quality ceramic, making it sturdy and durable. The big handle prevents the mug from rotating when you hold it, allowing you to enjoy your tea/coffee comfortably. 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 drinks with this ceramic coffee mug set!