The Topeak CO2-BRA Cartridge Inflator Pump is excellent for cyclists who like to travel light and fast. An ergonomic handle fits comfortably in the hand for better grip during inflation. A clever flip-up lever makes regulating inflation easy and prevents accidental discharge during transport. A visual indicator shows when the cartridge is punctured and ready to inflate. Topeak CO2-BRA Cartridge Inflator Pump Features Fits Presta and Schrader valves Integrated dust cap protects the inflation head Includes threaded 16g CO2 cartridge 7.5x4.3x4.8cm 68g (w/o cartridge)