
Stupid? Yes. In Florida gas stations charge air (I'm from California where it's illegal). So I'm worried about getting my tires pumped up before time runs out. Of course, this spoils everything and usually removes more air than I let in. I bought the air filler for my own use (without ridiculing an audience) and on the advice of "other" Amazons. also buy" got it. Neighbor showed me what it is and voila! I'm authorized. I've used it a few times and so far it's holding up very well.