Material: Made of high quality iron, the surface is rust-proof, durable, strong and beautiful. Dimensions: Length: 1-1/2" Thread: 1/4-27. Uses: Can be used for any standard lamps, floor lamps, standing lamps, table lamps, etc. to add charm. Features: Easy screw installation and removal. Package contains: 2 white lamp shade accessories (with gold trim). The lampshade is spherical in shape, with standard grinding and polishing, the surface is smooth without burrs, comfortable to touch and durable. In addition to providing a decorative touch, the top securely attaches the shade to a standard table or floor lamp. Before installing the lamp, you need to unplug the plug and turn it counterclockwise to remove the old lamp head. Place the lampshade on the stud and turn the securing end clockwise.