LAMP SHADE FIXING RINGS: You will get 6pcs lampshade fixing rings with size 57mm outer diameter, 40mm inner diameter and 9mm height, which can be used to fix the lampshade that is not the right size. HIGH QUALITY MATERIAL: The lampshade converter is made of high quality ABS plastic, sturdy and not easy to deform and break, it is a good helper for fixing the lampshade. FUNCTIONALITY: If you are using a smaller bulb and a larger shade, you can use the lampshade reducer ring to fix the larger shade to make it stable and won't fall off. QUICK AND EASY TO INSTALL: lampshade adapter rings are very easy to install, you just need to put the larger lampshade on and then screw on our lampshade adapter rings to fix the lampshade easily. WIDE APPLICATION: The lampshade adapter rings are suitable for most European chandeliers, table lamps, floor lamps, flat panel lamps, bedside lamps, wall lamps, etc. They can help you to fix larger lampshade to smaller lamp bases., Weight: 0.0881849048 pounds, Manufacturer: DOETYD