Fellowes 4800701 Laptop/Flat Panel Privacy Filter is designed for use with 15.4" widescreen laptop or flat panel monitors. The Blackout technology darkens screen images when monitors are viewed from the side. On-screen data is only visible to users directly in front of monitors. The recyclable filter protects monitor screens from dust, fingerprints and scratches. Antireflective surface reduces screen glare to help prevent eyestrain. The screen is easy to attach and remove.