Planet Bike Mini Versair Dual Action Bike Pump, Silver/Black Functional design allows for standard hand-held pumping in poor ground conditions or upright pumping to maximize power Dual action handles high-volume ATB or high-pressure road tires- even over 100 PSI T-handle and Ergo base lever for comfort, stability and power Hide-away extending reach hose with twisting lock head Reversible head adapts to fit Presta or Schrader valves