Bike frame:high-carbon steel Training wheels:yes Rim: 12" 14" 16" 18" 20" steel alloy or aluminum or plastic Grip:pvc, tpe, foam rubber, Saddle:full decorated pvc cover Brake:f/r caliper brake/r band brake/v brake Flywheel: 16t/18t/20t brown/black/cp Mudguard: plastic, steel , cp Color: red, black, blue, green, yellow etc. Any color you like Age for child:2-12 years old Package:one set per standard export carton/according to customer's request