Made using quality 3M materials, SKILCRAFT® privacy filters for desktop and notebook LCD monitors enable the user to keep classified and/or sensitive material from being viewed by others. Protects screens from scratches and fingerprints while also minimizing glare and reducing eyestrain. Easily installed and removed with no harm to screens. Filter stays in place when notebook is closed. Diagonal Monitor Size: 21.5"; Fits Device Type: Flat Panel Monitor; Laptop; Frame Type: Frameless; Maximum Antiglare Protection Percent: 95%.