Item Type: 23.6-inch Computer Screen Filter Product Material: PET Product Size: 21.5 inch Aspect Ratio: 16:9 (approx. 477 x 268mm or 18.8 x 10.6in) Clear View: This computer privacy filter film provides a clear view of the screen from a direct angle (around 30 to 60 degrees), appearing dark when viewed from the side. Simply adjust your monitor's brightness. Anti-Blue Light: Protect your eyes by filtering 96 percent of UV rays and suppressing 65 percent of blue light. This reversible filter gives you the flexibility to choose a glossy or matte finish. 16:9 Aspect Ratio: The 16:9 aspect ratio anti-blue light filter is compatible with most brands, scratch-resistant, and perfect for data privacy. Both Sides Available: This desktop privacy screen protector is usable on both sides, featuring a frosted surface with anti-glare coating and a clearer image on the glossy side to meet all your needs. Applicable Scenarios: Ideal for maintaining screen privacy in high-traffic areas such as open workspaces, airports, airplanes, cafes, office environments, financial institutions, and other public places.