3 years & up. The game of shine and seek! Search for the glow of the fireflies and catch all five. Place them into the mason jar to reveal a bright and glittery lantern. Fireflies gently flash and features an On/Off switch. For indoor and outdoor play. Each firefly requires 3 AG13 batteries (included). Included: 10 Light-up Fireflies in green and blue, 2 Mason Jars, and Instructions.