Luigi Bormioli 18-Piece Stemware Set Set includes 6 each: 22-ounce Balloon Stems, 20-ounce All Purpose Stems and 20-ounce Beverage Glasses Crystalline Glass Innovative glassmaking techniques produce perfectly smooth rims and edges Dishwasher-safe; made in Italy The "ingredients" of SON.hyx allow the glasses to be more brilliant in color and sound, increase their durability and strength