10 inch trailer tires up to 85 psi in a jiffy - check Car tires up to 50 psi in a jiffy - check But the next test will be tires for camper vans This inflation pump seems to do the job for everyone case to be grown. The biggest surprise for me was how small and light this device is. It's about the size of a liter bottle of moonshine and twice as light. I agree that for a compressor it's quiet as others have mentioned. Also, I was expecting the screw-on tip to let a lot of air through when removed, but it's surprising how little air there is even on my small 10" trailer tires. Junk for $50.