Made of borosilicate, a type of glass used by laboratories for its thermal shock resistance, these cold beverage tumblers can handle the chill from your frostiest refreshments. Clearly…they get points for style too. Set of 4 with bamboo lids and stainless steel straws. Measures 6"H x 3.25" diameter with 20-oz capacity each. Glasses and straws are dishwasher safe; lids are hand washable only. From the Tuscany Classics Collection.