It's 3 functions air chuck and have patent No.
For compeption bycicle that have presta valve.
one side is schrader and dunlop spec. another side is Presta spec.
Total length: 48mm
The tail is cannulate
Country of Origin:Taiwan,Taipei
Competitive Advantages:Well and High Quality Control ,OEM Accepted
Sales Method:Export ,Manufacture
Payment Terms:T/T