Serfas MP-3 Power Stick Pump With Gauge 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 Compact Alloy construction with large pressure gauge Dual Valve pump head - fits presta and schrader valves Hi/Lo switch to customize inflation speed PSI Capacity 110