Abracadabra, presto, chango — your marble run just added some colorful, magical fun with the “GraviTrax Color Swap” accessory!

The color swap brings a new element of surprise into the GraviTrax world. As if by magic, the ball changes color when it passes the stone. This can be prepared in two ways. Either by loading the stone with a ball at the beginning, or by installing it accordingly in the track. With the illusion of color change, the color swap provides a visual highlight. How often can the color of the balls be changed during a run?

This STEM system [Science, Technology, Engineering and Maths] is an ideal one to teach kids about gravity, magnetism, kinetic energy and fun. Hit a snag? Freestyle with your own track design or use the tasks and blueprints included to help you to get started in the world of GraviTrax! Are the gravity spheres stopping or flying off before reaching the end target? Time for some problem solving. Rebuild and try something different! The GraviTrax track system can be extended indefinitely with extra track packs and add-on’s – each sold separately.