Volcano Coffee Mugs are available in different colour accents in black, red, yellow, orange and lime green on the inside and have a liquid capacity to hold 325mls of your favourite brew. These superior quality coffee mugs are produced in ceramic with a black matte finish that can easily be customised for a great promotional giveaway. Printing Techniques Print prices shown are for our standard print and cured in low fire ovens. This means it is not dishwasher safe and is recommended for hand wash only. Gift Box We can also offer mug boxes with this product. Choice of White or Black box. They are supplied separately and flat packed.