Mini Dual Mode Bike Pump & CO2 Inflator

First of all the build quality is amazing. Made from machined aluminum I have no worries about it falling apart or cracking like some of my plastic frame pumps. It's nice and lightweight as well as powerful for it's size. Being able to pump manually as well as using CO2 was the selling point for me. I can stick this little guy in my backpack with all of my other emergency bike repair tools and it barely takes up and space. For it's small size manually pumping doesn't take nearly as long as you would think. I almost exploded a basketball trying to see how much I could manually pump it up. It got really high in psi to where a lump or egg was starting to form. This thing can pump out some pressure! With the CO2 hooked up it can very nearly pump my huge mountain bike tire up with one 16 gram cartridge. It then takes just a few pumps to fill it the rest of the way up. I've had quite a few frame pumps in my day and they never last because they're always made of some cheap Chinese plastic. This however is straight up aluminum.... AND I got it on crazy sale which just makes it that much sweeter. Super happy and highly impressed