Internal motor spins a cylindrical plate with a weight (a screw) placed on oneside creating an updown rapid vibrating movement. This vibration is then conveyedto 3 rods that smoothly propel the model forward in a sliding type movement.Model features easy assembly using snap-on parts and screws and is powered by a Type 130 motor. Direction can be easily altered by changing the direction of the rods. Speed can be adjusted by changing the angle of the rods. Body shape designed to maintain a curved form to movearound obstacles. Eyes act as rollers to also help ladybug to smoothly work around obstacles. Games and races can be easily made by building an obstacle course using cardboard etc. Best performance on smooth flat surfaces.