Small, lightweight, functional!
A great little pump that fits right on your frame under a bottle cage, and looks great too. As with any mini pump like this, it is a bit fragile but that's the right design. It holds right onto the valve and you can pump manually or use a CO2 cartridge. The pump allows you to carry a cartridge screwed right into the pump (but not activated) as well.
A very slick little design, and functional as well.