The DC motor and wheel set with gearbox is a ready-made component set that combines the motor and wheel needed to build a motion system for Arduino-based car and robot projects. The internal gearbox (reducer) increases torque while decreasing motor speed, allowing the robot to move in a controlled and powerful way even when loaded. With a 250 RPM rotation speed, it offers a stable performance on flat ground and slightly inclined surfaces. Used with motor driver modules such as L298N or L293D. It is widely preferred for two- or four-wheeled Arduino car projects and line-following robot applications.