Gravitrax Expansion Bridges then watch the mesmerizing motion

then watch the mesmerizing motion of the locomotive's gears

With a generous catch pocket

Set your favorites with one touch and get delicious results every time

with a 8 quart capacity

Gravitrax Expansion Bridges then watch the mesmerizing motionBridge the gap with the GraviTrax Bridges Expansion set and keep your marble run rolling! Bridge track sections! Bypass large gaps with Bridges. Combine the Bridges with your GraviTrax Starter Set for even more variety by interlinking track sections for really spectacular results. How many unique track designs will you create? What makes a great toy? GraviTrax checks all the boxes! Its a creative, modular, expandable track system that challenges