Serfas MP-2N1 2 in 1 Shock Mini Pump

FEATURES of the Serfas MP-2N1 2 in 1 Shock Mini Pump Shock and Tire Pump Alloy Construction Large PSI Gauge Twist selector for mode function Air Release Button for Fine Tuning Pressure Capable of getting you to extremely precise inflation pressures The switch valve & simple valve designs enable switching between Presta or Schrader valves, while the dual head offers both Our simple screw-on and Quick draw head designs both screw on the valve for a secure fit, even at high inflation pressures 2 in 1 shock and tire pump Alloy construction with large pressure gauge Hi/Lo switch to customize inflation speed Air release for fine tuning pressure