20.1" 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 20.1" (viewable area only) and a 16:10 aspect ratio; Filter dimensions are 17-1/8" W x 10-3/4" H.