1.10inch training bike 2.Steel frame, 3. Steel handle bar and fork 4.EVA tires 5.Rear Caliper Brake Frame12inch steel,painted,TIG welding,1.2mmForksteel,painted,TIG welding,1.2mm Handlebarsteel,paintedGripPVCTireEVASaddlePVC leatherBrakeRear Caliper BrakeThe first bike for children learning riding. New 2012 balance bike