The Ravenscroft Amplifier Mineral Water Cobalt Blue Wine Glass has an elegant long stem that flares to create the narrow cup with straight sides. The broad base prevents the glass from tipping and spilling. This glass is designed specifically for mineral water.Ravenscroft Crystal is the embodiment of old-world European craftsmanship blended with modern understanding of how a wine glass enhances the tasting experience. Each style of glass that Ravenscroft offers is the result of many years of glass-making trial and error. Each type of glass is individually designed and crafted to enhance the bouquet and taste of the wine or spirit for which it was made. The combination of being perfectly formed and light to the touch allows the bouquet to deliver the essence of the wine and spirits to the proper zones of the palate. To reduce the transfer of hazardous toxins into the beverage all Ravenscroft crystal products are lead-free.