Fellowes Standard Filter Tinted with Black Frame 19/21- Inch (93786) Fits and protects 19-Inch - 21-Inch CRT monitors Hanging flat frame with universal clips provides a custom fit Tinted glass enhances image contrast for easier viewing It is not a privacy screen.It Is just a shade darker. Also the item is made specifically to fit CRT monitors It is a filter designed to reduce eye strain and fatigue This items packaging will indicate what is inside and cannot be hidden.