Caterpillar Hub and Tread (Set of 2 treads 4 Hubs)
970040-1 · 2002 · Educational and Dacta
6 pieces · 2 part types
What there is most of
- Technic Tread Hub · White×4
- Tread Large, Technic [34 Links] · Black×2
The twenty most numerous parts, longest bar first. Start a checklist to see all 2 part types and tick them off as you find them.
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