2.2/2.3/3/3.17/4/5/6mm N20 Motor Shaft Coupling Connector Sleeve Adapter Brass Transmission Joint for RC Boat, Car, and Airplane

2.2/2.3/3/3.17/4/5/6mm N20 Motor Shaft Coupling Connector Sleeve Adapter Brass Transmission Joint for RC Boat, Car, and Airplane

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