Product Description: Add a bit of luck to your St. Patrick's Day party with the Beistle Plastic Shamrock Derby! This one-size-fits-most derby hat is made of plastic and comes in a case of 25 units. Perfect for any St. Patrick's Day themed party, these derby hats are sure to make a statement. Add the Shamrock Necktie or Glasses for the perfect outfit. At a great price, you get 25 units of the Beistle Plastic Shamrock Derby to complete your St. Patrick's Day look. Get your case today and bring a bit of luck to your St. Patrick's Day party!