The Double-Wall Design Of These Glass Mugs Does Double Duty: Adding Extra Insulation For Your Hot Beverages And Creating A Unique Look In Five Different Color Options. Made With Borosilicate Glass Resistant To Thermal Shock, More So Than Any Other Ordinary Glass.

Each Mug Is Sold Individually. Slight Color Variations & Markings On The Glass Are Not Flaws But Part Of The Standard Glass Blowing & Staining Process.