Open (straight out) ~ Wrapping attachment operation is not good. If opening is bad, it may take longer to install than safety pin. Maybe it will be comfortable with habit as I use it, so it is currently in three stars. Material, price is OK enough.
I can not affix anything, but I have to display "responsible person" and "chief" and sometimes put both printed papers OK. It will not open up with a safety pin. Since it is 210 mm, that is, the width of A4, even if it prints even if the vertical width fits, you can even fold it and do it OK.