Hex Coupler 3mm Bore Motor Hex Brass Shaft Coupling Flexible Connector for Car Wheel Tires Shaft Motor 8pcs

Description :
1.Material: Made of pure brass, sturdy, reliable and strictly functional.
2.Function: A special coupler, used for connecting the motor shaft and the hexagon wheel of the robot, toy cars, and other models.
3.Use: Suitable for model shaft connection, perfect accessories for RC Model motor, etc.
4.Feature: Durable and insulation, make your shaft more stable, easy to install and replace.