The perfect size for travel or table!  This 12 oz mug is a compact size that fits nicely in your palm.  High-quality stainless-steel interior prevents microplastic contamination.  Comes with a slide lid to easily open and close.  The lightweight design makes it easy to carry while walking in the park or the mall. The graphic on the outside looks 3D, but it is actually printed, it would be too expensive if the cup were made of actual opal. It can be used for hot or cold beverages!  Measures approximately 5" in height, 3.25" in diameter.  (Note: The lid is plastic, not stainless steel. You would not want to sip hot beverages out of a metal lid that conducts temperature.  The body of the cup is lined in stainless steel, which prevents your beverage from absorbing microplastics and other horrible chemicals in plastics.)