Gravitrax Extension Ball and Spinner 20 drawings and descriptions of

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Gravitrax Extension Ball and Spinner 20 drawings and descriptions ofLaunch more marbles with the GraviTrax Balls & Spinner and up the odds on your races! With the spinner up to six balls can be started at once. Watch as the marbles are sent on a race through your tracks. This extension allows you to build up to six different track courses. Combined with the Starter Set, you could have up to nine different tracks launched at once. How many marbles will you race? What makes a great toy? GraviTrax checks all the boxes!