The Bach is retro-chic with its elegant faceted design and is sure to inspire one's home bar and entertaining needs. The martini glasses are made in SON.hyx break-resistant clear crystal glass. Luigi Bormioli's proprietary SON.hyx glassware formula represents an exciting fusion of elegance and technology. These machine-blown glasses have laser cut rims, ideal weight, titanium reinforced stems, and maintain their clarity for up to 4000 industrial dishwashing cycles.