This aluminum presta to schrader converter car valve adapter is designed to convert a French/UK Presta valve to a US Schrader valve, allowing you to inflate a tire using a standard pump or air compressor. It is made from high-quality aluminum and is durable and reliable. The adapter is easy to use and can be attached to the valve in seconds. It is perfect for cyclists who need to inflate their tires on the go, or for anyone who needs to use a different type of valve on their tires.