Roll body with 3 windings, ca. 1 m diameter;
Rod 2 m up to 4 m long
Properties:
As an eye-catcher in a display window is the rod driven
by a motor, in a way that the body is running up and down
at the rod. Whenever a viewer comes near to the window,
a controller activates the motor. After an adjustable time
the motor is switched off again