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This expansion pack for your Gravitrax sets can launch up to six balls at once! Give the green spinner a slight turn and set the balls off racing! The spinner exits are rearranged, resulting in new angles to be tried out for launching the balls.
Keep your marble run excitement going with the Scoop. Triggered automatically when the marble rolls into it, the Scoop picks up the marble, swings like a trebuchet and propels the marble down the track of the next highest level.
Mix up the marbles’ journey with the Mixer. Add some surprise to your tracks by sending up to three marbles into the Mixer and see which sides they exit from. Combine this accessory with the GraviTrax Pro Starter Set. This STEM system [Science ...
Split 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 ...