Hanging acrylic privacy filter w/ Microlouver technology; Effortless to hang/remove - Privacy screen protector obscures the display of a 23.8-inch 16:9 desktop monitor to protect sensitive data - Provides clear viewing angle of 60 (+/-30 from center); Computer security shield with high-gloss finish/scratch protection coating - Dimensions 21.3x12.4in - Monitor screen protector blocks blue light/65% light transmittance - Security screen includes adhesive bumpers for secure hanging.