These Libbey 15791 Stacking Restaurant Basics 20 oz. mixing glasses will be the perfect addition to your restaurant, hotel, bar, or catering company! Perfect for serving water, soda, beer, iced tea, lemonade, and much more, they can also be used to make your signature mixed drinks. These glasses have an internal stacking shelf, helping you to maximize valuable storage space. Their large liquid capacities reduce the number or refills you'll serve, thereby saving you labor costs and increasing your profits.