I needed a tire pump so I could pump up my car's tires when they got low (yes, you can use a bicycle pump for this because the valve stems on bike tires are the same as the ones on car tires. It just takes a bit of time, since car tires are quite large in relation to the small size of the pump.) So, I walked into my local hardware store and looked at my options. They had one pump for $13 with a three year warranty, or they had this one for $10. I bought this one. I have used it to pump up my car's tires and it worked perfectly. It was easy to hook up, and it made an air tight seal to the valve stems. It did take a notable amount of work and time to pump all that air on such a small pump, but with a little elbow grease, it went fine. I prefer the simplicity and inexpensiveness of this anyway, as I do not need electricity or an air compressor. It also allows me the ability to easily stow it behind my seat and use it whenever and wherever I need it. If I get a flat in two years and my spare is low, guess what? I'll have an air pump.  Overall, it's a great little pump that does exactly what you need it to do. Note that you will need a separate tire gauge if you want to know how much to inflate your tires, as it does not come with one.