... .size:28*3cm 5.size:of the pump is various bike pump/bicycle pump/bike pars1.bike parts:bike pump2.color:blue,yellow,red ... ,also according to needs3.material:iron bike pump.alumium alloy bike pump,plastic steelbike pump4.size:28,50,57*3cm5 ... .usage:bike,chidren bike pump,motor,car etc.6.chacater:1)hign pressure and light ...