Let the lights shine on this glow in the dark 33970 Metro Train & Tunnel a great additional to any train enthusiast's collection. Get ready to glow: Jump on board this two-piece metro themed train with glow in the dark graphics and ride though the lit-up tunnel. Charge the glow in the dark graphics using any lamp or direct sunlight, switch off the lights, and watch the train and tunnel glow. Zoom through the tunnel: The playful tunnel, which also acts as clever packaging, features a transparent roof so that you watch as the train speeds through and easy access functions to prevent any potential blockages and help with charging.