Safe and Eco-Friendly: These coffee mugs are made of degradable clay, and are completely free of lead and cadmium. Our mugs are also sturdy and chip-resistant, making them an excellent investment for coffee lovers who want a durable and reliable mug for their daily brew. 12oz Coffee Mugs: These mugs are the perfect size for daily use at home or in the office. They can accommodate all of your coffee needs, as well as being a great choice for tea, milk, lattes, cappuccinos, hot chocolate, cocoa, and more. Stackable and Modern Design: These ceramic mugs feature a beautiful embossed texture design, the smooth rim ensures a comfortable drinking experience, the stackable design allows for easy storage and helps save space in your kitchen. Dishwasher and Microwave Safe: Our mugs are made of high-quality and durable ceramic, the shiny inside glaze prevents coffee stains from remaining easily, making these mugs easy to clean.