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.