All wine glass dispensers and holders are made of food-grade PLA plastic, which is very safe and sturdy. The liquid must be poured into the center of the dispenser to ensure an even distribution in each glass Pour the liquid slowly into the center of the wine glass, fill the small glass easily along the six small tubes, and then lift it up to enjoy the pleasant activity. Suitable for use with wine, liquor, beer, juice, water, etc. Ideal for vacations, party bars and family bars. Ideal for vacations, party bars and family bars. If you have any questions about the product, please feel free to contact us. We are 24/7 on line, and try our best to solve your problem. We also provide perfect after sale service, you could buy without worries.