Blackburn Mammoth CO2’fer Mini-Pump SilverThe Blackburn Mammoth CO2’fer Mini-Pump is a powerfully compact device to keep you going when you blow a tube while exploring the trails. Having the capacity to be used as a high powered hand pump or to be used as a threaded CO2 inflator gives you the luxury of choice on the go. Compatible with Presta, Schrader, and Dunlop Valves. 50 Max PSI Gauge. Extremely light weight.768686677984