This is one mug Grandpa will absolutely love! Since he loves rock and roll and his family, it's only right to get him a gift that combines the two. Every morning, as he enjoys his coffee, he can be reminded of how much he loves his grandkids. Mugs are available in different sizes ranging from 11 ounces to 20 ounces. Each mug is dishwasher safe. Free personalization of any title and up to 15 names are included on this design. Since this mug is customized with the names of each of his loving grandkids, we can bet that this will quickly become his favorite drinkware for his morning coffee. We recommend giving this to him for any occasion in which he is the man of the hour.