Have you ever noticed the 'FREE AIR' sign at a gas station? Well, air might be free - but it's not cheap! Under - OR over-inflated tires can dramatically lower your fuel economy, alter vehicle handling characteristics, shorten tire life and cause unnecessary wear-and-tear on your car or truck suspension - all expensive - but easily avoided by keeping tires at the manufacturer's recommended PSI pressure level. The easiest way to get the proper tire pressure is simply to see it as you fill the tire, and that's the beauty of this inflation gun. Instead of switching back-and-forth from air hose and pressure gauge, you eliminate guess-work and get the perfect pressure level every time. Quality steel and brass construction, ergonomic pistol-grip with easy-pull trigger, long flexible rubber hose for hard-to-reach valves and quick-connect adapter. (Recommended tire pressure can be found in your vehicle Owner's Manual or marked on the tire sidewall; some vehicles have labels on the driver's door-post.) Three-year warranty and Jack's Tool Shed worry-free Satisfaction Guarantee.