1. These Lamp finials are made of quality zinc-alloy material and antique brass plated to be anti-rust. 2. Various colors are available: Antique Brass, Brass, Nickel and Black for choice to meet the lamps with the corresponding colo 3. Size details: these lamp finials are 1/4-27 threads to fit the lamp harp top screws. 4. Simple to use: no need to use any tools, after placing the lampshade on the lamp harp top screw, you just need to screw the finial onto the lamp harp top, then secure the lampshade. Suitable for most standard table lamps, desk lamps or floor lamps. 5. Occations of Application: the lamp finial knob is not only a lamp part but also a decorated accorssory. fitting well for your table lamp, desk lamp or floor lamp at your home, living room, book room,restaurant, hotel or casino, etc. 6. The package includes: 2 pieces finials The lamp finial is the lamp part that screw onto the top of lamp harp and hold the washer fitter typle lamp shade on the top of a lamp.