3M Privacy Filter for 28" Widescreen Monitor (16:10) (PF280W1B) Effective "black out" privacy from side views outside the 60-degree viewing angle Helps reduce reflections so you see your screen clearly with pristine image clarity Reversible between a glossy side and glare-reducing matte Designed with advanced microlouver technology, creating an excellent high-resolution viewing experience Matte surface helps reduce glare and hide fingerprints.Designed to seamlessly fit within the raised bezel of your device Landscape orientation. Touch not compatibe. Scratch resistant. Reduces 35 percent of blue light transmission from the display Fits screen sizes of 27 9/16" diagonally measured (Width 23 3/8",Height 14 5/8") Screen data is visible only to persons directly in front of the monitor. 3M privacy technology darkens on-screen data when viewed from the side. Keeps your electronic information confidential, making it excellent for use in high traffic areas. Helps protect your fragile LCD screen from damage Filter is reversible. Choose matte side for anti-glare or glossy side for increased clarity. Made in USA