Product Description: the battery provides electric energy for the motor. The eccentric wheel of the driving motor operates at high speed. The center of gravity of the eccentric wheel is not in the center, and it is not in a straight line with the motor shaft. When the eccentric wheel rotates, it will always make the bottom plate move in the opposite direction, which will cause the motor and the bottom plate to vibrate in an arc at a high frequency, and the pen tip will also vibrate up and down. When the tip of the pen is off the paper, this arc vibration will make the tip continue to move.
Scope of application: kindergartens and primary schools
Note: self provided scissors, No. 5 battery, screw driver
Warning: children must operate under the full monitoring of adults! Prevent swallowing! Not suitable for children under 4 years old!
Note: The Battery is not include
Size: about 18*17*7 cm
Package List: 1 set toy