kid bicycle :12' 14"16'18" the manufacturer Frame,handlebar: CP new design,argon-arc welding, ... in YiWu City.1. Rim Size: from 12" 14"16" 18"2. Bike Frame: steel and painting, thicker argon-arc welding ... painting, co2 welding steel /suspension fork4. Rim: 12" 14"16" 18" steel alloy or aluminum5. Handlebar and stem: CP, argon-arc ... lots kind of models and any colors you can choose 18" kid bicycle