Our Princess Blinkies have 5 LEDs (3 red and 2 white) and is individually packaged in a clamshell. Batteries are included & installed. Our blinky princess button comes with a butterfly connector that may create a small hole in the garment you attach it to. Our blinky princesses are sold by the dozen. Please order in increments of 1 dozen. Replacement batteries are available for this item: 2 pcs, CR927. Sold in a polybag of 12 pieces. Please order in increments of 1 pack.