Revered Dr. Martin Luther King Jr. mug features a rainbow of inspiration and a quote on the back: The time is always right to do what is right.  Start each morning off with a reminder that dreams can and will come true.  This a  15 oz stoneware mug. This mug measures 4.5" H x 3.4" OD. You can dishwash and microwave this item--it is made to be used and enjoyed on a daily basis. Great gift for any social justice warrior.