Dual Thread Design: Our black lamp finials fit both 1/4-27 standard harp thread or 1/8 IP (3/8 inch). Comes with a removable adapter, you can use your fingers or a tool to remove the dual thread adapter to meet the needs of 1/8 IP Easy Installation: The ball design makes installation simple and convenient. Simply screw the lamp finials decorative onto the top of the lamp harp for a secure fit, no tools required Classic Black: The classic black finish adds a touch of elegance and simplicity to yor lamps, enhancing its overall appearance. Beyond decoration, the finials for lamps securely holds the lampshade in place, preventing wobbling Solid and Long-lasting: Our lamp toppers screw on are made from solid metal, which is rust-resistant, sturdy, and wear-resistant, ensuring a long service life Versatile Use: Includes 2 lamp finials, compatible with table lamps, floor lamps, and other lighting fixtures with standard 1/4-27 threading or 1/8 IP, adding charm and personality to your space Elevate the style of your lamps with these black lamp finials. This set of 2 decorative ball caps or knobs that screw onto the top of table lamps or floor lamps, adding a touch of elegance to your lighting fixtures. Crafted with precision, these finials for lamps feature an black finish that complements various decor styles. Measuring approximately 1 inch in diameter, they are designed to fit most standard lamp harps. Enhance the visual appeal of your lamps and create a cohesive look in your living spaces with these versatile lamp replacement parts.