I bought a Vastar tire inflator for my bike and electric scooter. Within an hour of delivery and without recharging, I've used the Vastar to inflate each of my 30lb scooter tires. up to 50 pounds. in less than a minute. The Vastar retractable hose is ideal for scooter tire nipple stems - this usually requires a special stem extender. It's a lot easier than pulling out my 50 lb air compressor and hooking up a hose and tire pump/gauge. Can't wait to try it on car tires. The Vastar comes across as a quality device with a solid, rigid body, well-made air fittings with O-rings, and a large display that's bright enough to be read in daylight. A handy extra feature is a button to deflate the tire when reading the pressure on the display - useful for adjusting my mountain bike tires to different riding conditions. Looks like an old air compressor is destined to collect a lot of dust.