Nice Looking: Add a decorative element to your lamp with this finial cap knob. Great way to update the style of your lamps. Finishes: the finishes of electroplating come with a protective lacquer coating which protects the finials against discoloration or tarnishing. Material: Made of quality metal, and these amp finials are threaded 1/4-27 to fit standard lamp harps Dimension: 1 inch X 0.55 inch (Height X Width) Functional: In addition to providing a decorative appearance, the finial secures a lampshade firmly onto a standard table lamp or floor lamp. Easy to use: Easy to install, screws onto the lamp harp top after installing the lamp shade. Packing: 4 pcs / pack This lamp finial toppers are threaded 1/4-27 to fit lamp harp tops, and the height is 1 inch; The finial on a lamp is a decorative part that is attached to the top of the lampshade or lamp base.