This face shield Halo was designed from input from a number of nurses in the central Ohio area. It uses a standard 3 hole paper punch for spacing. The face shield comes with .007 PET 13x9 shields with additinal ones avalible for purchase. These are designed to be run on the HP MJF printers. 120 units per build at this time. The shield has a flexible brow area that is very comfortable and protects from droplets coming down. This flexible area helps to place the unit on the users head and acts like a flexible strap but with very little pressure around the head.  These are available to purchase at this time