3M PF200W9B Privacy Screen Filter

3M Privacy Filter Black, Matte - For 20" Widescreen LCD Monitor - 16:9 - Scratch Resistant, Fingerprint Resistant, Dust Resistant - Anti-glare; 3M™ Privacy Filters provide world-class "black out" privacy from side views outside the 60-degree viewing angle, while creating an excellent viewing experience from straight on views. Reversible between a glossy side and a glare-reducing matte side that helps reduce reflections and hide fingerprints, so you can enjoy pristine image clarity. ;