A spiral optic on the inside of the bowl creates fast aeration and makes these Luigi Bormioli Aero 13.5 oz. Stemless Wine Glasses - Set of 6 an elegant and smart addition to any wine lover’s glassware collection. A perfect match for wine of any age, the unique design of the high-tech blown glasses are stemless – but they manage to remain comfortable in the hand as you enjoy your vintage’s fruity aromas and flavors over dinner or while enjoying company with friends. The glass is also completely lead-free and they are dishwasher safe. Made in Italy.