3M PFMAP002 PFIM27v2 Privacy Filter for Widescreen Apple iMac Monitor,Black,27 inch

Helps keep on-screen information private; screen data is visible only to persons directly in front of the display Will not blur or distort on-screen images Users experience clearer, crisper images on-screen than with competitive filters Protects your screen from dust and dirt More scratch and scuff-resistant than competitive filters