3M Framed Privacy Filters are easy to remove for collaboration, sharing or to clean as needed. You get crisp image clarity on your screen, while visual hackers with side views are kept in the dark. 3M Framed Privacy Filters fade to black starting at the 30-degree side angle, are great for high-resolution monitors & reduce 35% of blue light transmission. Diagonal Monitor Size: 18.5"; Fits Device Type: Flat Panel Monitor; Frame Type: Flat Frame; Mounting: Adhesive Strips or Hang Arms.