Review on Effortlessly Inflate Your Tires with the Slime 40020 Tire Top Off Inflator by David Hashman

This thing would be great if it worked. It is small and compact, easy to take anywhere. Unfortunately, the tire does not inflate above 25psi, which is half the advertised 50psi. It gets very hot in use and the engine will noticeably slow down as tire pressure increases. Above 20psi it barely works and at 25psi it stops completely. 25 psi will probably limp you home, so I don't throw mine away, but I'm sorry I didn't return them before the return window closed. Buy something else.