Light up the night alongside the Christmas tree with this festively flashy necklace. Perfect for adding a fun and festive touch to any holiday celebration. Nine colorful plastic holiday light bulbs with flashing LED lights are strung on a 17 inch "chain." Each bulb is approximately 1.25 x 2.5 inches. No closure, just slip on over your head. Requires an AG3 battery (included). Suitable for ages 6 and up.