20.0" Wide PrivaScreen Blackout Privacy Filter blacks out screen image when viewed from the side to prevent prying eyes from reading your screen; Crystal clear screen image from straight-on view; Easy to attach and remove with new and improved tabs; Protects screen from scratches and fingerprints; TAA compliant; Privacy filter fits widescreen monitors with a diagonal screen measurement of 20.0" (viewable area only) and a 16:9 aspect ratio; Filter dimensions are 17-7/16" W x 9-13/16" H.