Gravitrax Starter Marble Run Set SS Baby and experiments

and experiments

Sturdy and Easy to Clean - This dog carrier bag features long-wearing

Colors include Blue

8 oz Dimensions 8 × 12 × 6 in Age 24 Months & Up

Gravitrax Starter Marble Run Set SS Baby and experimentsWith 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