High-quality materials: This faucet spool is made of high-quality brass and ceramic. It is the highest quality and hardest ceramic. It is durable, does not rust and has a long service life. Good sealing: This replacement faucet has an easy-to-use black rubber fixing gasket, which can seal the faucet well, prevent the faucet from leaking, and avoid replacing the faucet again, making your life easier. Common size: There are 20 gears on the top of the spool, the outer diameter is 7.5mm, the inner diameter is 4mm, and the total length is 51mm. This is the most common faucet valve size. Before purchasing, please check the size to ensure compatibility with your faucet. Easy to use: The red and blue O-rings on the bottom of the spool are easy to distinguish, making installation easier. Blue turns clockwise to open the tap and counterclockwise to close the tap, red is opposite to blue. Please assemble according to your faucet specifications during installation. Widely used: The ceramic faucet valve is suitable for most kitchen and bathroom faucets and can be used for single or double cold and hot water faucets. Color: Blue Specification: Material: Copper Optional Color: Red, Blue Height: 50mm Maximum Working Temperature: 90 Nominal Diameter: 24mm Weight: 48g Package Included: 1X Tap Faucets Note: 1.Due to the effects of lighting, monitor's brightness, contrast settings etc., there could be some slight differences in the color tone of the pictures and the actual item. 2. Please allow 1-2mm difference due to manual measurement, thanks.