Winners of the 2007 iF Product Design Award! Perfectly suited for a multitude of hot and cold beverages as well as desserts. Handmade of heat-resistant borosilicate glass, these vessels insure that their contents will remain hot for a longer period of time while the glass itself remains cool to the touch. They are dishwasher and microwave safe. The coffee andf tea mugs come as a set of 2 and hold 310ml (10 oz.)