To use this wine glass set, simply pour your favorite wine into the stemless glasses. The felted wool farm animal - topped cork stopper can be used to seal the wine bottle when not in use. When it comes to maintenance, hand - wash the glassware with mild dish soap and warm water, then dry it with a soft cloth. Avoid using abrasive cleaners as they may scratch the glass. Also, handle the felted wool part of the stopper gently to prevent damage to the animal shape.