Doctor Who Coffee Mug with Hidden TARDIS, 12 Oz. Doctor Who mug design inspired by TARDIS as seen on the show - perfect gift for the ultimate fan! Watch The Dr Who TARDIS appear from the bottom of your mug as you drink! Coffee mug holds 12 ounces of hot or cold beverages, design helps maintain drink temperature Product dimensions approximately 3.5 inches in diameter and 5 inches in height Hand wash, not suitable for microwave use