They are most commonly used on automobile and bicycle wheels, but also for many other applications
On many refrigeration and air conditioning systems to allow servicing, including recharging with refrigerant
By plumbers conducting leak-down pressure tests on pipe installations
As a bleeding and test port on the fuel rail of some fuel injected engines
10 X Valve stem 1/4" SAE x 1/4" O.D. x 4" stem
10 X Valve Cores
10 X Caps
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.