Krazy Kars: Light Up Marble Racers Fire Chief Skullduggery brings you the coolest racing experience ever with Krazy Kars Marble Racers Light-Up Racing! Marble Racer racing cars feature an interior marble with a motion-activated LED light inside As the car races along, the lights flicker as the marble spins making the cars look like they are flying at breakneck speeds!! Winner of Oppenheim Toy Portfolio Best Toy Award Gold Seal and Creative Child Magazine Top Toy of the Year Award; proudly made in the USA Includes car and decorative detail stickers for you to attach; for ages 3 years and older with assembly assistance