Product name: Bicycle French style air nozzle converter Product Size:Length 1.57cm/0.61inch Outer diameter 0.97cm/0.38inch Thread outer diameter 0.74cm/0.29inch Product color: As shown in the figure Product material: aluminum alloy product features: 1. Durable aluminum alloy structure: Our bicycle valve converter is made of high-quality aluminum alloy, which has long-lasting durability and wear resistance. 2. Accessible French to American Conversion: With our convenient valve converter, switching from French style valves to American style valves has never been so easy, allowing you to quickly and easily adapt to different inflation sources. 3. Precision Made American Valve Adapters: Our American valve adapters have excellent quality and precision during the manufacturing process, ensuring that you can trust them and over time, they can function perfectly. 4. The connector on our converter ensures a secure fit and eliminates any leakage or air loss during bicycle tire inflation. 5. Greater compatibility: Compatible with various bicycles, our valve converter allows you to easily switch bicycle valves, making it the perfect accessory for any bicycle enthusiast. 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact mewe will give you some suggestion, but it is for you reference only. Shipment includes: 4 pc Bicycle French style air nozzle converter