It's 3 functions air chuck
For compeption bycicle that have presta valve.
one side is schrader and dunlop spec. another side is Presta spec.
The tail is cannulate
Total length : 142mm
Country of Origin：Taiwan,Taipei
Competitive Advantages：Well and High Quality Control ,In a Variety of Design ,OEM Accepted
Sales Method：Export ,Manufacture
Packaging Method：BY CARTON