Metal Worm Wheel Plastic Gear Reducer Reduction Gearset For DIY Accessories

Feature:?
1?pcs?of?gear?can?match?most?gears,?all?combined?into?gears,?this?gear?are?suitable?for?shaft.
Make?of?high?quality?plastic?and?metal?material.
For??DIY?science?and?small?production,?product?design,?mechanical?model.

Specification:?
:?White.
Material:plastic?and?mental.
Size:as?the?picture?show,?the?gear?diameter?is?28mm,the?metal?stick?length?is?27mm.

Package?included:?
1X?Gear?and?Metal?Stick.







a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a