Extra-thick cardboard pieces mean your puzzle will last for years and our fine

flat tires and safety

1x Piece of straight track and measures 12

Best of all

The heat from your hands transforms it from deep space blue

Gravitrax PRO Splitter Expansion Set owls Extra-thick cardboard pieces mean yourSplit the directions of the marbles with the Splitter. See if the marbles have enough speed to roll across the trap door. If they roll too slow, the marbles will fall to awaiting tracks below and will go in different directions. Combine this accessory with any GraviTrax Starter Set. GraviTrax is a modular interactive track system where you can design and build your own marble runs. This STEM toy for boys and girls 8 and up, encourages experimenting