Dear Sir Madam, Type:kce bike Wheel Size:12" Frame Material:Carbon steel Fork Material:Steel Rim Material:PVC Product name:Kce Bike Color:RED,YELLOW,PINK,BLUE Tire:EVA Tire Size:52*20*18.5CM Grip:eco-friendly PVC Material:EVA carbon steel Brake:R-Caliper Brake Suited Ages:1-2 years OEM:Yes