PROTECT SENSITIVE DATA: This laptop security filter provides effective privacy from outside a 30° viewing angle to ensure data on your laptop screen is kept confidential in the office or traveling EASY APPLICATION: Attach durable & removable screen protector to MacBook display using the magnetic bezel at the top of the screen; Prevents scratches/fingerprints/dust; Doesn't interfere w/sleep mode BLUE LIGHT REDUCTION: In addition to protecting your data, this MacBook privacy cover screen minimizes digital eye strain by reducing blue light by 30% to 40% when working for extended periods of time COMPATIBILITY: Laptop privacy screen filter is shaped to not interfere with top-mounted webcams on 15" MacBook Pro (2017 and later) and MacBook Air (2018 and later) with 16:10 aspect ratio REDUCE GLARE OR INCREASE CLARITY: Reversible computer screen privacy filter retains sharp and consistent image quality in any lighting with an anti-glare matte-finish and a high-clarity glossy-finish