I am a professional driver and my tires are very important. Part of my job is making sure my tires are properly inflated, not only to save money but also for your safety. See all the piles of flat tires on the freeway? While not everything can be prevented, some of them can, and using this tire gauge correctly will help. This gauge is easy to use, easy to see, has a good end that makes a good seal with the valve stem. It also holds the pressure reading until the user releases it, making it easier to read. Although it's cheap, the quality isn't cheap at all. I used to have a lot of gauges in my tires and I hope I found my last one and I think I succeeded. I have already bought a second one as a gift.