BORDSTRACT Universal Joint Shaft Coupling, 4 Pcs 6mm to Metal Motor Connector with Screws, for Connecting Model Cars Robots

Nickel-plated iron material: The overall structure of this universal joint shaft coupler is compact, strong hardness, durable, can be used for a long time is not easy to break. Lightweight and Portable: Small size and easy to carry, you can simply keep it in your bag. Take it with you, easy to use Features and Use: This joint or coupling connects rigid rods whose axes are inclined to each other. Commonly used for shafts that transmit rotatory motion Exquisite Appearance: The metal universal joint is suitable for straight shaft motors,use for model car, model ships, robots and other types of metal transfer Size: Inner Diameter: 4x6mm, 5x6mm, 6x6mm, 3x5mm, 4x5mm, 5x5mm (Optional)