... /carton) Specification :children bicycle,children bike,childs bicycle/bike,boys bike bmx bike,baby bikerim size: 12”,16”,20"bike frame: steel and paiting,thicker argon ... painting,CO2 welding steel/suspension forkRim:12” 16” 20” steel alloy or aluminiumhandle bar and stem: CP,argon-arc weldingtyre:12 ...