update. I'm stuck with a flat tire right now. All three of my grandchildren aged 2 to 7 were in the car. Luckily I had that with me and was able to inflate a tire in about 10 minutes. I was able to bring the kids home safely! Tomorrow morning I'll put my hair back in and take the tire to be repaired. This product really saves the day! .I have only used it for bicycle tires so far, but I think I will like it very much. A year ago I bought one for my dad that attached to his batteries and looked like a drill. I really liked it but didn't have the right batteries and when I bought it and the tool I was looking at $150 or more so it was the more economical option. I love that it has a carrying case and two different chargers, one for the home and one for the car. Seems like a good buy