Product Description Sit back and enjoy a delicious beverage while you watch the lights illuminate the alphabet you have painted on your wall. Totally normal behavior for anyone that possesses this mug. SPECS: Materials: Ceramic. Can be microwaved. Mug prefers to be cleansed by hand. Size: Holds 15 oz. Perfect size for soup...or just the right amount of coffee in the morning to enable you to leap small buildings in a single bound. (We don't recommend attempting that last part.) Design: Coffee Yarn Contemplation checklist is painted on one side, GnomeAcres logo is imprinted on the opposite side. Will be shipped in bubble wrap and super heavy duty mug box to ensure safe arrival.