I don't know what to say about this product but it's not for any application, it's free flow to put the bead of your tires on the wheel, not to add air to your tires because you remove the valve core need to force them to work, but if you have a tire changer and change tires, this is a necessary tool for the car before you need to break out the radiator. So if you're buying this product for your garage to inflate your tires, fret because it doesn't work, don't do it because it works as intended