Delicol personalised magic hot heat sensitive color changing coffee mug cup-Add YOUR PHOTO&TEXT,the perfect gift to your family,lover,friends! When the Mug is cold it is Black - Pour in Hot Liquid & the Black fades to reveal your hidden picture - Magic! Image or text will be displayed on front and rear of the mug- two separate pictures on the one mug is possible The mug will go back to black when it cools down and will do this cycle forever All mugs are custom made & are non returnable. Any Mugs that are faulty will be replaced. Hand Wash Only. Please use the "contact seller" "product customisation request" facility and attach your picture