Pack of 2 - Work, power, Engineer, physics - 11OZ ceramic coffee mugs - Best funny and inspirational gift TWO-PACK - These mugs feature printing on both sides and are only sold by Who's Your Daddy. Twice the joy with these lovely high quality ceramic mugs made by the best artisans and masters of the field in order to make the perfect gift for the person you love. Ideal to show your love and how much you care with a sense of humor. Start the day with a beutiful piece of drinkware made for the perfect occasion. Dishwasher and microwave safe. Perfect for any occasion.