Make your glow Prom theme even more fun with this Chasing Light Necklace. The 26" transparent tube necklace includes 4 LED light modes: circular, flashing, left-to-right, and sequential. On/off button lets you change easily among modes. Lights are available in your choice of color. Batteries are included and installed. Hand out this light-up necklace as a cool Prom favor or use it as a unique decoration.