The "I need to teach my facial expressions how to use their inside voices.", mug makes a perfect birthday, hostess, or girlfriend gift! Our girlfriends will love this witty quote. Mary Phillips' mugs toss out the underlying element of fun and attitude. Each mug is full-color, 11-oz glossy stoneware ideal for hot or cold beverages. Printing is on both sides and is perfect for left—and right-hand users. These mugs are Microwave-safe. Handwashing is suggested.