Top the St. Patrick’s Day night with awesome party favors. Add the Plastic St Patrick's Day Shamrock Derby hats to your supplies. Perfect for any St. Patrick's Day party. This inexpensive item is lightweight and easy to wear. Molded of plastic material. Attached is a card stock shamrock that states "Happy St. Patrick's Day" and wraps around the brim. Simply hand out to your guests at the door or throughout the party. Comes packaged bulk in a pack of twenty-five. Comfortable fit for an adult as a one size fits most.