These amazing double wall glasses keeps the beverages hotter than a traditional glass because of the insulation it provides with the two layers! The double wall nature also ensures the glasses can be held without scalding the hand while being consumed. They are made from borosilicate glass which means the glass is strong, heat resistant and light weight. The shape of the glass makes it easier to hold. It also presents quite interesting visually as it allows you to see the different layers of coffee and milk. It is dishwasher safe and easy to store, allowing you to stack multiple cups. Why not get them in all sizes? They come in 110ml, 250ml and 300ml and 350ml! Great complementing items 16351 sugar shaker, 98109 coffee art stencils, 112564 coffee capsule.