This Bosmarlin Large Ceramic Coffee Mug is perfect for office and home use. With a 20 oz capacity, it is made of lead-free, cadmium-free, high quality ceramic and is designed with a strong construction for durability. The big handle makes it easy to hold and prevents it from rotating when you try to hold the mug. The unique reactive glaze technique gives it a simple but classic design and each mug is unique. Available in four stylish colors, it makes a great gift for any occasion. It is also dishwasher and microwave safe. If you have any problem with the mug after receiving it, just contact us and we will make every effort to solve it.