This ISO Compliant filter reduces screen glare by up to 99% to help prevent eyestrain, meeting the American Optometric Association (AOA) specifications. The light-tint glass provides sharper text and brighter graphics. Properly grounded, the frame also lessens static charging. Assembly-free frame fits easily on your monitor. Diagonal Monitor Size: 15"; CRT Monitor Size Range: 14"-16"; Fits Device Type: CRT and LCD; Frame Type: Flat Frame.