... size: 12'' 16'' 20'' steel alloy and aluminium 2, High quality and competitive price 3, Fashional design baby bicycle:1,Rim ... size: 12'' 16'' 20'' steel alloy and aluminium2, High quality and competitive price3, Fashional design4, Handlebar and sterm: CP, argon ... 1PCS/CTN or 4 pcs/CTN18, Green paint is good for health