Children bicycle: Size12”, 14”, 16”,18”, 20”colorRed, blue, yellow, black, pink, purple and so onBike framesteel and painting, thicker argon-arc welding/CO2 weldingBike forksteel and painting, CO2 welding steel/ suspension forkBike rimsteel, alloy or aluminiumHandlebar and stemCP, argon-arc welding, separate handleTyre12"x1.75, 14"×1.75,16"x1.95,18"×1.95, 20"x1.95Chain wheel & crank12" 24Tx89, 14" 24T×88, 16" 28Tx102, 18' 28T×102, 20"28Tx127CP/EDChain coverfull chain cover with stickerBrakeF/R Caliper Brake or R band brakeFlywheel16T/18T/20TBrown/Black/CPMudguardsteel, painting or CPSaddleleather with reflectorPedalplastic with reflector