General description High quality ceramic faucet heads made of solid brass and ceramic, ensuring durability and longevity. These cartridges work perfectly and can be used for an extended period. Technical specifications Length: 53mm Outer diameter: 7.6mm Inner diameter: 4mm 20 notches on the top of the valve Compatibility and accessories Universal size, suitable for 75% of faucets Compatible with single or double hot and cold water faucets Includes 2 faucet heads (1 blue and 1 red) Comes with 2 screws (4mm), 1 Allen key, 1 screwdriver, and 1 wrench Installation Easy to install with the provided tools and accessories. Usage Easy to rotate and operate, allowing for clockwise and counterclockwise movement to open or close the faucet without dripping.