Tank Up Coffee Mug

This smart looking porcelain mug comes complete with a coffee gauge. When your java is running cold, you'll know you're on empty by simply glancing at the embossed heat sensitive gauge. The tank mug works with any hot beverage. Its printed temperature line with turn red to indicate how hot your drink is. When the gauge runs down, it means your ready to top off your cup. The Tank Up comes individually gift-boxed and makes a great gift for the office.