Provides clear viewing angle of 60 (+/-30 ) - Laptop privacy screen protector darkens the screen of a 16-inch 2021 and 2023 MacBook Pro computer to protect sensitive data - Privacy shield will not interfere with webcams/sensors/closing the lid - Reduce eye strain by blocking up to 51% of blue light - Reversible privacy filter with anti-glare matte and high-gloss sides - Light transmittance close to 60% - Transparent adhesive strips included for installation.