2 Pack Universal Joint Shaft Coupler Coupling Steering Connector 3/3.17/4/5/6mm for RC Car Crawler Boat (4mm to 3mm)

Feature:
Made of stainless steel,durable.
360 degree rotatable universal joint.
Ideal accessories for RC Model motor, such as model airplane boat.
Metal joints for use in direct-axis motor, motor for the brush motors and small brushless motor.

Parameters:
4mm to 3mm:
Hole diameter:one is 4mm,the other is 3mm.
Universal joint outside diameter:9mm
Universal joint length:22mm
Holding screw size:M3

4mm to 3.17mm:
Hole diameter:one is 4mm,the other is 3.17mm.
Universal joint outside diameter:9mm
Universal joint length:22mm
Holding screw size:M3

4mm to 4mm:
Hole diameter:one is 4mm,the other is 4mm.
Universal joint outside diameter:9mm
Universal joint length:22mm
Holding screw size:M3

4mm to 5mm:
Hole diameter:one is 4mm,the other is 5mm.
Universal joint outside diameter:11mm
Universal joint length:22mm
Holding screw size:M4

5mm to 5mm:
Hole diameter:one is 5mm,the other is 5mm.
Universal joint outside diameter:11mm Universal joint length:22mm
Holding screw size:M4

6mm to 6mm:
Hole diameter:one is 6mm,the other is 6mm.
Universal joint outside diameter:11mm
Universal joint length:22mm
Holding screw size:M4

Package include:
2 x Universal joint(The same size as your choice)
4 x Holding screw

Note: The color of the item may vary slightly due to photography and your own computer