Our high pressure, dual head pencil gauge is extremely easy to use. Just pop the head onto a valve, and take a reading. Plus, we've included 2 valve extenders, so you can always measure your air pressure, even in those hard to reach places. • 10-120 psi• Dual head pencil tire gauge reaches valve from any angle• Includes (2) bonus black valve extenders• Chrome gauge body• 4-sided tongue measures psi, kPa and bar