1.children bicycle child bike kid's bike
2.Frame: steel,co2 welding,MTB painting
3.Fork:steel and painting,co2 welding
Handlebar: steel CP
Tyre/Tube: air tube or EVA(lower)
Rim: steel CP
Pedal: without ball,plastic,with reflector
Mudguard:steel painting
Saddle: common, leather
Crank:BK
Attachments: training wheel ,ski pad ,helm and bag
14. packing size: one 40HQ
12 74*18*33 1550sets
16 90*43*19 1000sets
20 107*19*50 670sets