Uxcell Sloped Ceiling Adapter 180/355 Degree Swivel for Chandelier Light Black 4 Pack

Uxcell Sloped Ceiling Adapter 180/355 Degree Swivel for Chandelier Light Black 4 PackWhat is this? These sloped ceiling adapters allow your ceiling light chandelier or chandelier hang from the slop ceiling. Suitable for angle or Irregular ceiling. Are there any advantages of the product? Made of electroplated iron sturdy and hard not easy to rust not easy to break and deform smooth surface. How to use it? Easy to use can rotate 180/355 degrees M10 thread easy and simple for you to apply. What should I notice? This is not a light fixture but an accessory for chandelier light fixtures.