1. These valve cores are made of high-quality copper, which enhances the corrosion resistance of the valve core and valve stem, especially when the valve core is installed in the brass valve stem, it is more durable, safe and reliable. 2. Use pliers or a valve removal tool to screw into the valve rod, no longer need to worry about the bicycle tire problem, the installation is simple and convenient. 3. The all-copper valve core reduces the air leakage rate and improves the performance of the valve core. 4. Function: Used for tire air intake to prevent tire air leakage 5. Scope of application: French valve suitable for various bicycles such as road bikes, folding bikes, mountain bikes, etc. 6. Material: Brass 7. Surface treatment: nickel plating
