Key Features:Gloss finishHeat change or standard mug availableScratch ResistantIf they\'re the best teacher make it official with our certified best teacher mug. It can be personalised with a message to thank your teacher for helping you all year!Personalisation:Personalise the mug with a message in up to 66 charactersUse our innovative preview feature to see how it will look with your personalisation. Simply enter the message and press the Preview buttonMaterial:CeramicCare Instructions:Hand wash recommendedPlease Note:The heat change option will arrive as a black mug and the image only appears once hot liquid is poured into it