This Bosmarlin Matte Ceramic Coffee Mug is perfect for office and home use. It has a regular capacity of 13 oz and is made of lead-free, cadmium-free, high quality ceramic, making it sturdy and durable. The big handle makes it easy to hold and prevents it from rotating when you try to hold the mug. The simple and classic design comes in fourteen stylish colors, making it 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. We care deeply for our customers and make you our top priority!