Gravitrax is an innovative modular system for building super cool marble run tracks.

Made from a variety of different components and rails, plan, test out and realise the physical laws action-packed distance gradients with skilful use. Preset task cards and layouts make it easy to take up free building and construction with a multitude of logical and action blocks.The route is the goal!

The GraviTrax Extension Twirl adds dynamic spiral pathways to your marble runs, introducing thrilling vertical motion and complex trajectory changes. This extension includes tunnel elements, base plates, height tiles, curves, intersections, flex tubes, and spirals, enabling intricate and creative track designs. 

Add 3 additional balls and 38 exciting components, the Extension Twirl brings the balls to turn and swirl in the GraviTrax tracks. With 4 FlexTubes and tunnels, routes can be twisted and balls can be swirled in 2 spirals - for even more ball action.

Recommended for ages 8 years - but GraviTrax will appeal to the somewhat older kids too.

American Specialty Toy Retailing Association (ASTRA) – Best Toys for Kids 2018 – Winner Constructive Play