The ad information stored in the base of the screen could be drawn out easily for displaying and be rolled in the base automatically to protect the picture from being destroyed during transportation.

The uique design simplifies the adjustment of winding up torque of the taking up roller. The self-locking device makes the displayed picture in a tightening state, suitable for displaying the picture made of thick and long materials. After being rolled up, it could be put into a handbag for convenient transportation.

The high quality strong aluminum housing guarantees its working stability and service life.