The Peanuts Stoneware Nervous by Nature & Grouchy Since Forever Coffee/Tea Mug is a colorful and charming round mug featuring characters from the Peanuts franchise. Made of ceramic and porcelain, this medium-sized mug is suitable for hot or cold beverages and is perfect for all occasions. The contemporary style and cartoon & TV characters theme make it a fun and unique addition to anyone's collection. Easy to care for with machine washable instructions, this original Peanuts tea mug is ideal for fans of the beloved TV show. Any questions please ask. Thanks for asking.