Privacy filter helps protect your confidential information from prying eyes so it's ideal for high-traffic areas. Great for business professionals, education, finance, government, healthcare and libraries. Filter is designed for your Apple Thunderbolt 27" (68.58cm). Patented microlouver technology darkens on-screen data from a side view. Screen data is visible only to persons directly in front of the monitor. They see clearly without blurring or distortion. Filter also protects LCD screens from scratches and damage as well as dust and dirt. Easily attach and remove the privacy filter. Application adhesive is specially formulated for display screens. Notebook filter can remain in place when your computer is closed. Filter is reversible with the antiglare surface on one side.