Add a unique twist to your personal mug collection or add another dimension to the mugs used at your business with this Color Changing Ceramic Mug that will hold 11 oz. The mug looks primarily black until hot liquid is put inside and then the magic happens, the black disappears and reveal your logo, design or photo. The maximum personalization area is 7″(L) x 2-3/4″(H) (wrapped around mug). Due to the printing process used to produce these mugs they are to be hand washed only. The Print House can customize mugs for your family, business, team or community organization.