Review on Malker Bike Pump: Compact and Portable Floor Bicycle Pump with Presta and Schrader Valve Compatibility, Aluminum Alloy Construction, Bonus Tire Levers, and Bike Patch Kit by Larry Gaines

a layer of rubber came out which is not mentioned in the documentation. (photo) I thought this would cause the pump to not work, but it still works. It's not the best for high-pressure road tires, but in Schrader settings it's worked well on some big tires that I keep around 65psi. Haven't tried the included levers or patches but they look ok. I don't think I would install it on my bike because there are parts that will rattle a lot on rough roads. (e.g. a small fold-down lever).