electric lithium battery folding bike 1, light weught and small size 2,material: magnesium alloy 3,li-battery ... : 740*290*840mm1,A NEW FASHION TRANSPORTATION TOOLS.2, SMALL AND MUCH LIGHTER , EVEN LITTLE GIRLS ... MAINLY USE MAGNESIUM ALLOY, ANTI CORROSION, ANTIQUAKE, with tenacity.4,A NEW DESIGN AND PERFECT CRAFTWORK, ... BE PUT INTO TRUNK Magnesium alloy electric Foldable Bike with lithium battery