Show your dad how much he means to you with our Personalized World’s Greatest Dad Coffee Mug. With every sip, he’ll feel your love and will be reminded how special he is to you. This coffee mug is the perfect birthday or Father’s Day gift! Customized with spaces for three of his children’s birth dates, six digits per birthday. Comes in your choice of 20 different text color options. Made of heavy-duty ceramic. Holds 15 ounces Personalize with 3 Birth Dates up to 6 digits per Birth Date Choose from 20 Text Color Options.