type:foldable child bike with comfortable back seat new design chain cover height seat tube with UP strong bike frame foldable child bike,foldable child bicycle ,foldable kids bike ,foldable kids bicycle ItemChild bicycle, kids bicycle, BMX bicycle, children bicycle, Folding bicycleBike size12".14".16".18"and20".FrameSteel, painted, argon welding or co2 weldingForkSteel, painted, argon welding or ...