Iseebiz&reg; 1 Pair Training Wheels for Ninebot One C C+ E Electric Scooter Training Wheels Assist Wheels Balancing Unicycle Training Wheels Ninebot One is an intelligent and fashionable personal transportation tool with interactive function. With your exclusive transporter Ninebot one, you can say goodbye to the crowds and enjoy the freedom and pleasure, being the master of the world. Use this product to replace the car for a short distance. This reduced the cost of gas, pollution, and traffic. It is compact size and convenient as a private mini car, You can take it to the office, classroom, restaurants, buses and metros or subways. Max speed of 17-20km/h, max range of 20-30km