Mugs -Stronger and more heat-resistant than regular glass or ceramic mugs, our espresso cups are made from double-walled borosilicate glass. Not only will our cups keep your solo or doppio shot warm, they also keep the exterior of each cool to the touch for a comfortable feel in hand. Material: Glass, Also could be used for glasses,drinkware,dishes,kitchen items,mugs, serveware,dishes,cups,coffee mug,coffee cup,kitchen,kitchen items,thermal mug,espresso cup,espresso cups,doublewall mug,doublewall cup,double wall mug,double wall cup,demitasse cups. By Cost Plus World Market.576095