Advertising sleeves for security barriers

This is a great use of space in-store. The picture shows a carton-board sleeve that has been placed over a standard security scanner. These scanners / barriers are employed in most supermarkets, pharmacies, etc. to detect shop lifting. The sleeves can be made to fit any size of scanner. They can be used singly as above or, most dramatically, on a line of scanners as in the picture below.