GraviTrax : Color Swap Expansion

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

Bring a new element of surprise into your GraviTrax marble run! As if by magic, the marble changes color as it passes "through" the "Color Swap". Simply hide a marble within the tunnel - the momentum from the incoming marble propels the hidden marble out the other side with the illusion the marble changed colors! It’s a snap to combine "Color Swap" with any "GraviTrax Starter-Set" to experience the power of gravity and educational fun today!

Comes complete with instructions, 3 Color Swaps and 3 marbles (red, blue, green).

Lasting durability for girls and boys ages 8 and up, it’s the learning toy children (and savvy adults) return to over and over again!