The 20 oz. Frost-Flex Tall Plastic Tumbler is made from polypropylene, which is a durable and slightly flexible type of material that's perfect for disposable drinkware. No matter if your event is more sophisticated or simply casual, this tumbler will look great serving all of the cold beverages for guests. The frosted exterior is appealing in presentation and provides a textured surface for a slip-free grip. Packed 500 pieces per case, this plastic tumbler will be a great solution for any busy catering business, bar, or quick service restaurant.