Valentines Assorted Colors Blinking Love Hearts Necklace On Colored Strings 12 Per Pack | Dazzling Toys Our Dazzling toys blinking heart necklaces on colored strings are great accessories for all celebrations, festivities, and occasions. Theyre made of hard plastic material and feature assorted colored blinking LEDs. To start the light, press the mini heart in the center and it will start flashing. Each box contains 12 heart necklaces. Non-replaceable batteries are included and installed. Hearts measure 2 inches. Comes in an assortment of white, pink, blue and green.