Features Specifications:Children/kids/folding/toy bicycle, folding/mountain/road/suspension bike, frames,forks,brake,rim,handlebar,mudguard,  Children/kids/folding/toy bicycle, folding/mountain/road/suspention bike, frames,forks,brake,rim,handlebar,mudguard,rack and other parts 1) size.: 16" ,20" 2) Frame: steel tig welding,painting, top tubeΦ45×1.0, down tube Φ45×0.9mm, front face Φ33x1.2mm 3) B.B parts:3pcs,B.B Axle, B.B Cup.  4) Brake: F/R V brake  5) fork:BMX painting,Φ28×1.35 6) Tire & tube : rubber ,20'' × 1.95 7) Handle bar: BK Φ22x0.8mm 8) CP steel chainwheel & CP crank 9) Pedal: without ball, plastic, with yellow reflection 10) Saddle: leather , mtb style & comfortable  11) Rim:alloy 16"×1.75×16H  12) F-type chain cover with sticker 13) Brake lever: plastic with aluminum insert  14) Shining color and good design