The package contained: 30 pieces of black bike inflate tire valve adapters.
Easy to install: Just loosen the tip of presta valve, and then screw on the valve adapter.
Reliable quality: The bicycle valve is made of high-quality aluminum alloy, which is light weight, built-in o-ring rubber seal, can effectively prevent leakage.
Practiacl tool: The bike valve adapters convert presta to schrader valve nozzle, can be left on the tire stem so it is always available to inflate your tires.
Wide application: These bike valve adapters are suitable for bicycles, road Bikes, folding bikes and mountain bikes.