Gravitrax Expansion Trax Add On for Marble Interactive Track System RAINBOW you can configure the Spiral

you can configure the Spiral to take the marbles on a dizzying journey from one level to another

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Gravitrax Expansion Trax Add On for Marble Interactive Track System RAINBOW you can configure the SpiralONE BRAND NEW GRAVITRAX EXPANSION TRAX ADD ON. This expansion trax is an add on only to the starter set, which you must already have and is sold separately. Includes 44 expansion pieces: 16 large height tiles, 8 small height tiles, 7 curves, 1 junction, 1 long Track, 2 medium tracks, 3 short tracks, 6 balls. With this set, you can take your ball run to a whole new level. How long can you keep the balls rolling? Combine the peaks, curves and rails with