As Bertrand noted that looks like one of the Bontrager "Air Support"
pumps. I bought the MTB version for my mountain bike. I never tested
it and the first time I got a flat I discovered it did not work very
well. Air leaked out around the valve and I was lucky enough to get a
little bit of air in my tire for the ride home.
In my experience nothing beats the Toepeak Morph pumps. They are a bit
bulky, but the hose and foot brace make them very effective.
They are also priced less than the Bontrager models. The Toepeak floor
pumps work great too. Also, the one time I had to contact Toepeak for
support, I was very impressed with their customer service.
Peter.