Item Type: 23.6inComputerScreenFilterProduct Material: PETProduct Size: 21.5 InchAspect Ratio: 16:9 (Approx. 477 x 268mm / 18.8 x 10.6in) .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Clear View: Computer eye protection filter film provides you with a clear view of the screen from an angle (about 30 to 60) that appears dark when looking at the screen and bright when looking directly, simply adjust the brightness level of the monitor to change. 2Anti Blue Light: Defend your eyes by filtering 96% of UV rays and suppressing 65% of blue light. This is a reversible filter that gives you the flexibility to choose a glossy or matte finish. 316:9 Aspect Ratio: Anti blue light filter with 16:9 aspect ratio is compatible with most brands, scratch resistant and used for data secret. 4Both Sides Available: Desktop screen protector is available on both sides, with a frosted surfaces and anti dazzling coating design, and a clearer picture on the glossy side to meet your needs at all times. 5Applicable Scenarios: Computer screen filter is ideal for maintaining screen secret in high traffic areas such as open work spaces, airports, airplanes,coffee shops, office environments, financial institutions and other public places.