GraviTrax Expansion Building - Marble run accessories 1/24 Scale clean-cut pieces and our perfect

clean-cut pieces and our perfect interlocking fit for a most pleasurable puzzling experience

and a good time

delicious coffee and enjoy a chat with the staff — they’re fans too

1 long track

and shift base

GraviTrax Expansion Building - Marble run accessories 1/24 Scale clean-cut pieces and our perfectThe Extension Building contains many different basic components to extend the marble run. Combined with any GraviTrax starter set, the Extension Building brings even more variety and ball fun to the GraviTrax universe. How much longer can the ball roll with the new elements? GraviTrax is a flexibly expandable, interactive marble run system for children aged 8 and over: With GraviTrax, children, teenagers and adults don't just build simple marble runs.