if need more detail, please contact me . 

contact : Tina shang  wechat/whatsapp: 0086-18132937310  

FRAME：steel,TIG,painting

FORK：steel,TIG,painting

STICKER：outer sticker

HEAD PARTS：ED

BB PARTS：medium，46.4mmX1.8MM

HANDLEBAR：22mmX0.9mm，12"/16" W:480mm 20"W:520mm

STEM：one point,CP

GRIP：110mmx22mm

TIRE：1.25,black tire

INNER TUBE：1.25,A/V,natural rubber

RIM：steel

F/HUB：3/8x10Gx130L，12"16H，16"20H，20"28H

R/HUB：3/8x10Gx180L，12"16H，16"20H，20"28H

SPOKE：ED,14#

CRANK：ED,12"89mm，16"102mm，20"114mm

PEDAL：white,good quality

F/BRAKE：3.0 caliper brake

R/BRAKE：70x1.0 band brake

BRAKE LEVER：plastic brake lever

SADDLE：lether,good quality

SEAT POST：ED,25.4mmX180mmX0.8mm

MUDGUARD：plastic mudguard

CHAIN COVER：plastic chainguard

BELL：same as picture

BASKET：steel

TRAINING WHEEL：plastic

TRAINWHEEL BRACKET：2.5mm