This privacy filter fits and protects notebook or LCD monitors from dust, fingerprints and scratches. Black-out technology darkens screen image when viewed from the side to prevent prying eyes from reading your monitor. Reduces screen glare to help prevent eye strain. Easy to attach and remove. Maximum LCD Monitor Size Range: 20.10 in; Notebook Monitor Size: N/A; Frame Type: Frameless; CRT Monitor Size Range: N/A.FEL-4801301-X0. -4801301-X0. Fellowes Fellowes Privacy Filter for 20" Widescreen Notebook/LCD.