Let the luck of the Irish be with you. Add the Irish Shamrock Blinky LED Lapel Pins to your party supplies. This inexpensive pin replicates the traditional shamrock that is well-known throughout the St. Patrick’s Day holiday. Every piece measures 1.4 inch by 1.5 inch in size. Simply activate each piece by pressing the button on the back of each pin. Replaceable batteries are included for a convenient use today and easy use in the future. Comes packaged wholesale in a pack of twelve individual pieces.