HOLIDAY TIME 16.56 OZ / 490 ML CERAMIC COLOUR-CHANGING MUG CAPACITY : 490 ML / 16.56 OZ MATERIALS : 100% CERAMIC / STONEWARE COLOR : BLACK OR WHITE MUG CHRISTMAS DESIGN PATTERN ( TOTAL 6 DESIGNS FOR SELECTION)(4 BLACK & 2 WHITE MUG) - BLACK MUG WITH RED TRUCH AND VILLAGE - WHITE MUG WITH DOGS AND XMAS HAT - BLACK MUG WITH CHRISTMAS ORNAMENTS - BLACK MUG WITH CAT - WHITE MUG WITH SANTA - BLACK MUG WITH GINGERBREAD MAN IN BEACH image only appears once hot liquid is poured into it. Hot liquid activates the graphics ; image only appears once hot liquid is poured into it. It's Magical! The mug features a solid Black or white exterior that reveals the image when a hot beverage is added. Heat reveal works with coffee, hot chocolate, or any warm beverage Idea for Christmas Design and Patterns Serving for 1 Person Do not use in microwave or dishwasher hand wash only Wash Before Use Make of high quality ceramics, which is not easy to deform and can be used for a long time.