These wedding champagne flutes are a great addition to your special day. To use them, simply fill the glasses with your favorite champagne and enjoy the toast. When handling, be careful as the glasses are made of glass and can break easily. Avoid hitting the glasses against hard surfaces. For maintenance, hand - wash the glasses with mild dish soap and warm water. Do not put them in the dishwasher as the high - pressure water and harsh detergents may damage the koozies or the glasses. Also, be gentle when cleaning the koozies to avoid loosening the glue. Keep them in a safe place when not in use to prevent scratches and breakage.