Birthday Party Rave Kid's Tiara Costume Accessory Light Up Flashing LED King Crown Hairband Hair Hoop Headband - Pink - Happy Birthday 5 colorful LED lamps, 3 flashing modes. Cute, unique and chic Lightweight and comfortable to wear. Great for birthday parties Fits children and most adults. Diameter (cm): Approx 12; High (cm): Approx 10.5; Made of fabric and plastic Powered by button batteries (included). To turn on, pull out the insulation piece and press the black button Package included: LED Headband x 1