razzin frazzin pump..... I used to have one of those. I got multiple flats once. I tried the pump and it broke. It's made of cheap plastic and has a weak gasket. I ended up blowing all the CO2 I had, so when the next flat happened, I was boned
That pump turned a decent ride (aside from the flats) into my worst ride ever. Nothing worse than walking 5 miles in road shoes pushing a bike with a flat. Lucky for me, a good Samaritan gave me a ride for the last 7, otherwise I would have had to walk the whole 12.
It's OK as a CO2 inflator, but REALLY crappy as a pump. You're probably better off getting some kind of frame pump. I got a Topeak road morph after my inflator incident and couldn't be happier with it.