... .bike parts:bike pump 2.aluminium alloy bike pump 3.new-designed,widely-used bike pump 4.high pressur,light bike pump/bicycle pump/bike pars1.bike parts:bike ... ,plastic steelbike pump4.size:28,50,57*3cm5.usage:bike,chidren bike pump,motor,car etc.6.chacater:1)hign pressure and ... light weight 2)widely used,carry conveniently and easy to use ...