O Rings and Pulley Wheels
5003152-1 · 2014 · Educational and Dacta
50 pieces · 2 part types
What there is most of
- Technic Wedge Belt Wheel [aka Pulley] · Light Bluish Gray×25
- Technic Wedge Belt Wheel Tire · Black×25
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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