Make your 40 year old birthday party decorations or 40th-anniversary party supplies truly shine with the addition of this delightful set of 16 plastic party cups. Each cup has a generous 16-ounce capacity, allowing you to serve a wide range of beverages. With these 40 birthday cups in hand, your guests can toast to the milestone and enjoy their favorite drinks in style. Not only are these cups perfect for holding beverages, but they also serve as versatile containers for an assortment of treats, desserts, confetti, or themed party favors. Fill them with delectable goodies or surprise your guests with unique mementos, ensuring that everyone leaves with a delightful memento of the celebration. Warning. Do not Microwave.