WEST BIKING Bike Pump Bicycle Tire Portable Inflator Air Pump 100PSI Mountain Road Bike Accessories for Cycling MTB Bicycle Pump Pump Part Main material Surface treatment Handle Plastic cement Spray elastic paint Inner tube AL6063 Anode Outer tube AL6063 Anode /Anode Sand blasting Base Plastic cement / Diameter: About 2.5cm Closing length: About 25.3cm Stretch length: About 38.6cm Hose length: About 21.5cm Maximum pressure: 7Bar/100Psi Conversion nozzle: Schrader Presta Valve Switch Net Weight: About 137g(only pump) Gross Weight: 157g(with accessories) Required number of times: About 260 times(40PSI)