Double-Walled "Half-Full" Glass Mug

Double-layer glass coffee mug with yellow enamel "half-full" detail on the side.

Made of mouth-blown, lab-quality glass. Scratch-resistant. Safe to heat in microwave or cool in fridge. Vacuum between the double wall borosilicate glass ensures the interior coffee stays hot, while the exterior wall stays cool to the touch.

• 5 oz.
• 3" dia. x 3.5"H