Colour changing mugs: Buying this 11oz colour changing mug, you will be getting a high quality premium ceramic grade mug in a glossy finish. When the mug is cold the colour is black, when the mug is warm or holding warm liquids the colour is white and any images on the mug will appear. This mug is Not Dishwasher or Microwave Safe
Black mug: Premium High Quality Black Mug with White Patch (7.75"W x 3.25"H) to insert your image. Dishwasher & Microwave safe and heat resistant.