18.5" 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 18.5" (viewable area only) and a 16:9 aspect ratio; Filter dimensions are 16-1/8" With x 9-1/16" H.