1) Type:kids bike 2)AR welded 3)Frame thickness 1.2mm 4)Size:12",14",16",20",26" kid ... 1.95 2.125 air tires or EVA tire4)Bike Fork: steel and painting, CO2 welding steel /suspension ... /CP11)Mudguard: steel, painting or CP or PVC12)Bike Frame: steel and painting, thicker argon-arc welding/ ... specialized in steel/alloy bicycle parts ,kid’s bicycle and man’s bicycle , such as bicycle frame, front fork ...