These wine glasses require no assembly or complex setup. Before first use, it's recommended to hand wash them gently with warm water and a mild dish soap, then dry thoroughly with a soft, lint-free cloth. They are optimally compatible with white wines but can certainly be used for rosé or other beverages if desired. For care and maintenance, always hand wash the glasses. Avoid harsh detergents or abrasive sponges, which can scratch the crystal. After washing, rinse well and dry immediately with a soft, dry cloth to prevent water spots and maintain their brilliant shine. Store them upright in a cabinet where they are protected from accidental knocks or tipping.