Made of durable polystyrene, our cup is food grade, BPA-free, and recyclable. It's constructed with a rolled rim to make sipping your beverage more comfortable. Our party cups are designed with convenient fill lines to measure out your beverage of choice. Includes a 1-ounce line for liquor, a 5-ounce line for wine, and a 12-ounce line for beer.Skip the dishes! Our plastic cup is made to be disposed of after use, allowing you to celebrate without worrying about the end-of-night clean up.Save counter space with our large, stackable cups. They're also easy to write on with a marker, helping guests keep track of their beverage.