There are 3 models: the Wine glass, the Champaign glass and the Grappa glass. They all come in glass or white porcelain.
The glass version has a perfect balance and a black stem. The thickness of the glass is perfect, being neither too thin nor too thick. The first impression you get when putting a glass to your mouth is extremely important.
The porcelain version, fits perfectly in your hand, and lets the aroma of the wine express itself freely.