1. Material: plastic/nickel-plated copper
2. Applicable to: schrader valves
3. Suitable for extending valves on bicycles, electric scooters, scooters, and cars
4. Built-in spring design, attaches to Schrader pumps to inflate external Schrader valves
5. Fine thread for easy installation, electroplated surface for durability
6. Excellent airtightness, no leaks
7. Standard bayonet mount for easy installation and removal