Max Traxxx brings you the coolest collectible cars ever with Marble Racers Light-Up Race Cars! Marble Racers utilize Motion Activated LED lights to bring the coolest blink and flicker light action to your car collection. You have never experienced racing like this before! Marble Racer Gravity Drive 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!! Cars can be played with on their own or with Max Traxxx glow in the dark Gravity Drive tracks. Tracks are customizable by combining sets with track modules - create any track you can imagine! Marble Racers are proudly made in the USA!Skullduggery is proud to offer their Max Traxxx lines of quality race car tracks and model car kits that combine discovery and fun, providing kids with many hours of exciting enjoyment! Just the sort of quality product you have come to expect from Skullduggery, makers of the fine Eyewitness and Smithsonian casting kits that combine creativity, discovery, and learning into one exciting artistic journey! Discover all that Skullduggery brands have to offer your child!