Tea & Coffee Glass Cup by VizC&aacute;sa - Insulated Double-Wall Mug with Handle (8 Oz) Tea, Espresso, Latte, Juice, Water Coffee & Tea Mug - 1 Glass Mouth-blown using top quality very lightweight borosilicate-glass, measuring 3 by 3 by 3 holding 8 Ounces (240 mL) The eye catching double wall design creates dramatic optical illusion while preventing condensation Keeps your Beverage hotter or colder longer while at the same time being safe to touch Heat resistant; top shelf Dishwasher safe (hand wash recommended); Microwave safe; Freezer safe, can be used gently with metal silverware With this purchase you are not only getting our amazing product, you also get our world class customer service! We know you will love our mugs or your money back!