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a sturdy steel frame
The smaller 11
Both boys and girls find unlimited ways to play with Bilibo – using it to rock and spin in
Transactions are rewarded with lights
fuss-free nylon and mesh construction
Gravitrax Starter Marble Run Set Ditty Bird a sturdy steel frameWith over 100 pieces and 18 different construction elements, the GraviTrax Starter Set offers everything you need to begin building your own action packed track systems. Discover how the laws of physics affect the journey your marble takes with curves, junctions, freefalls and even a cannon. Experiment using different heights and angles to control the speed of the marble to get it to the finish. Contents Instructions (D, F, EN, NL, E), construction
