These beautiful Vietri Regalia glasses are perfect for your favorite old - fashioned drinks. To use them, simply pour your beverage of choice into the glass. When it comes to cleaning, always use a gentle hand wash with mild soap and lukewarm water. Avoid using abrasive sponges or harsh chemicals as they may damage the 14 - karat gold hand - painted details. After washing, dry them carefully with a soft cloth. Store them in a safe place, away from other hard objects to prevent scratches. With proper care, these glasses will bring you joy for a long time.