The Bach AP Stem is made in Italy of SON. hyx Break Resistant Glass and has an elegant faceted design. Luigi Bormioli's proprietary SON. hyx glassware formula represents an exciting fusion of elegance and technology. These machine blown glasses are lead free, have laser cut rims, and maintain their clarity for up to 4000 industrial dishwashing cycles. The beautifully drawn stems have been permanently reinforced with Titanium via nanotechnologies. The glasses carry a 25-year against chipping of the rim or foot as well as any discoloration due to dishwashing.