This screw is made of high quality brass. It is not easy to rust, lightweight and durable material for long term use. Replacement solid brass click mechanism. There is a stainless steel spring in the screw, durable and rust-proof. The use of spring mechanism and thread promotes a pop-up effect. Simple operation, quick installation and disassembly, saving time and labor. A great replacement part for pop-up drain valves in sinks. This replacement screw can be used for most kitchen sink drain plugs. Serves as a replacement part for sink pop-up drain valves. Easy to install, hardware and gaskets are included, a perfect accessory for brass tub stoppers. < li>Specifications: Material: Brass Size: As Picture Showse Color: Brass 2 * Drain Bolts Note: This does not include other things, the color is based on the first picture and other pictures only show the effect< li/> Due to differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!