Built in gauge: Prevent damage from over inflation,max Pressure 210psi/15bar,NO need to use an external gauge.
Made of high quality aluminum alloy 360 degree rotatable flexible hose for easy use.
Release valve (red button) to adjust pressure when over inflating.NO need to take away the air pump.
Presta & Schrader Compatible: Interchangeable valve head allows for quick adaption between two stems
Long Extendable Hose: Less stress on tire stem while attaching and pumping bike tire