3M Pf20.1 Notebook Privacy Screen Filter 20 InchDescriptionSpecificationsShipping 3M Privacy Filters keep confidential information private. Data is visible only to persons directly in front of the monitor, passersby see only a dark screen. Improves screen contrast and reduces screen glare and reflections PF20. 1 fits standard desktop LCD monitors with a diagonally measured 20. 1 Inch viewable screen Actual filter dimensions are 12 1 8 Inch H x 16 1 8 Inch W This filter is designed for standard LCD