Threaded Extension Rod Kit, 250mm Long Lamp Pipe with Connector Light Fixture Parts for Pendant Light, Island Lighting, Chandeliers, Black 4 Set

What is this?
The M10x1mm coupling nut can connect two M10x1mm all threaded pipes together. It is a common light fixtures accessory kit for the repairing and restoring of ceiling lamps and chandeliers, or DIY making.

What will I get?
Material: Iron Electroplated
Color: Black
Thread Size: M10x1mm
Thread Pipe Size: 7.5x250mm / 0.3"x9.84" (Inner Diameter*Length)
Coupling Nut Size: 12.5x20mm / 0.49"x0.79"
Package Content: 4 x Long Coupling Nut, 4 x Long Thread Pipe, 4 x Small Hex Nut

Are there any advantages of the product?
Made of metal material, electroplated surface, with good appearance, and durable to use.
Easy to use, no need for tools.  

How to use it?
Easy to install, each coupling nut can connect two pipes on both end. After that, use the small hex nut to fasten.

What should  I notice?
Please check the thread size before buying.