WINE GLASS:- A versatile shape, being used both for white and red wines. The specific use is based on the volume of each glass. The more open the glass is, the more it contributes development of aromatic substances; therefore, such glasses are used for flavor wines ? RED WINE:- For the red wine glasses, the rule of rather large glasses with wider mouths prevails. The bigger surface enables to achieve easier oxygenation, which is important by red wines in particular. Following the sort and type of wine, glass for red wine should range from 350 to 500 ml (11.83 to 16.90 oz) and more. ? WHITE WINE:- As for suitable sizes of glasses, minor volumes between 150 to 250 ml (5.07 to 8.45 oz) are recommended for sweet white wines. The volumes between 150 to 400 ml (5.07 to 13.52 oz) are recommended for dry white wines. ?BOHEMIA CRYSTAL:-The Bohemia Crystal glassworks is characterized by its automated production and manufacturing high quality crystal glass, so called ?crystalline?, without lead application (lead-free crystal). Precisely formed, thin-walled stemware with smooth rims enables to excel even to the finest wines, elegant tumblers accentuate taste of the other, equally popular drinks. ? RECOMMENDED CARE AND MAINTAINANCE OF THE GLASS:- ? It is possible to use a dishwasher for other glass products. In such case, set the dishwasher at a glass-friendly program, at low temperature, and open its door as soon as the washing cycle finishes. Condensed vapours cause harm to glass. ? Please note that decorated products, whether it be with gold, platinum or paints, shall not be machine-washed. Wash such a product by hand in lukewarm water, using soft sponge and a mild, non-aggressive detergent. Treat the glass with a soft cloth after washing. ? When handling the glass, avoid any contact with hard objects including glass; there is a danger of scratching. ? Products are not intended to be used for serving hot beverages or in microwave ovens.