Privacy screen blocks views outside a +/-30-degree angle from the centre of your 16:9 23-inch widescreen display to keep your desktop data confidential Easily attach the privacy filter to your monitor with residue-free adhesive strips. Or slide it over your display using the included side mounting tabs for easy setup (Extra adhesive strips and mounting tabs (MON-PRIVACY-SCREEN-K) are sold separately) Reduces blue light by 40% to 51% to minimize digital eye strain during extended use Flexible dual mounting options are compatible with various monitor bezels and protect them from scratches, fingerprints, and dust Reversible privacy filter features an anti-glare matte-finish or a high-clarity glossy-finish to retain sharp and consistent image quality in any lighting