What is this?The socket ring helps to secure the lampshade to the lamp, great for holding lampshades for your table lamps, pendant lights, floor lamps, chandeliers. And the removal tool can help you remove the G9 thread socket ring.What will I get?Material: PlasticFit for Lamp Socket: G9Pitch: 2mmThread Diameter: 20mm / 0.79"Black Removal Tool Height: 124mm/4.8inchLight Socket Ring Inner Dia: 23mm/0.9inchPackage Content: 5 x Light Socket Ring; 1 x Removal ToolAre there any advantages of the product?Great replacement for your old or broken lamp holder rings. Durable and convenient for you to use.How to use it?Use the removal tool to remove the fitting that secures the shade, then you can take off the old socket ring and replace it with new.