GraviTrax Hammer Expansion is an excellent add-ons to the latest Gravitrax Marble Run system from Ravensburger. It is to be use with GraviTrax Starter Set.

The Hammer Expansion set comes with 7 components adding more tiles and tracks to your existing GraviTrax Starter Set. Contents includes: 1x Hammer Tile, 1x Long Track, 2x Medium Tracks, 3x Short Tracks

Use your imagination to build superb tracks and set the gravity spheres rolling! Gravitrax is an ideal STEM system (Science, Technology, Engineering and Maths) to teach kids about gravity, magnetism, kinetic energy and fun. Having trouble starting? Demo tasks and blueprints are included in the set to help you to get started. Recommended age: 8 years and up.

What is more? The GraviTrax track system can be extended indefinitely with extra track packs and add-ons. Each sold separately in the link below: 

GraviTrax Starter Set