Hexbug Vex Gear Racer, Multi Color

Kids Can Now Experience The Fun Of Building Their Own Speedy Robot Inspired Cars With Vex Robotics Gear Racers By Hexbug These Gear Racers Teach You About How Machines Convert Potential Energy Into Kinetic Energy, While The Multi Colourple Gear Ratios Teach You About The Fundamental Principles Behind Speed And Torque