This is a mini marble run designed for endless fun. Spin the cog and the ball goes round the run.

This model comes with:

1x mini marble

1x mini run setup

1x main drive cog

1x mini drive cog

1x main drive cog holder

1x mini drive cog holder

1x mini drive cog pin

Warning Comes With Very Small Parts.

If marble doesn't to print pls use the spare marble file.

assembly guide