1CNC Aluminum Alloy Processing: Sturdy and durable CNC aluminum alloy processing, aluminum alloy barrel body and inner and outer tube, good heat dissipation effect. 2CNC Cutting Process Grain: CNC cutting process grain, pumping can effectively prevent the trouble caused by hand slip. 3Telescopic Rod Design: Telescopic rod design, can effectively shorten the length, convenient to carry, when using it can be stretched to pump the bicycle. 4Rotary Switching: American valve and Presta value can be rotated to switch, rotating air outlet can be pulled out or retracted, you can quickly switch American valve and Presta value, compatible with different scenes. 5Equipped with Fixed Bracket: Equipped with fixed bracket, easy to install on the bottom of the bicycle and the kettle holder, will not affect the use of the kettle holder, compatible with the kettle holder. 6160PSI Peak Pressure: 160PSI peak pressure, small size and atmospheric pressure, easy to pump for the bicycle, suitable for American valve and Presta value, easy to switch, rotary installation, stable and air leakage prevention. 7Air Pressure Real Time Display Function: The upgraded model is equipped with real time display of air pressure, accurate physical display of air pressure, so that you can maintain standard air pressure anytime and anywhere. Item Type: Mini Bicycle Tire Pump Weight: Approx.179g / 6.3oz Material: Aluminum Alloy Product Size:Length: Approx.21cm / 8.3in Air Nozzle: American Valve And Presta Value, Stretch And Transform By Rotation Air Pressure: 0-11bar / 160psi Features: Pressure Gauge TypeTelescopic Hose Color: Black 1 x Pump 1 x Fixing Bracket 2 x Screw 1 x InflationNeedle 1 x Manual Please allow 01 inch error due to manual measurement. Thanks for your understanding.