This screw is made of high quality brass. It is not easy to rust, lightweight and durable material for long term use. Replacement for the solid brass click mechanism. There is a stainless steel spring in the screw, durable and anti-rust. The use of a spring mechanism and a 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. < p>Specifications: Material: Brass Size: As Picture Shows Color: Brass Delivery Range: 4 * Drain Bolts Note: this does not include other things, the color is based on the first picture and other pictures only show the effect Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due manual measurement. Please allow deviation. Thank you! getveryrich Note: The data is all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be some color difference, the actual object received shall prevail.