The laptop privacy screen is easy to attach and remove. Simply attach the MacBook privacy filter to your laptop with using the magnetic strips. This magnetic privacy screen is also reversible. The matte side provides you with glare reduction and the glossy side of the privacy screen will provide you with increased clarity. Protect Your Privacy The laptop privacy filter is a great investment if you want to protect your privacy. It is a convenient and cost-effective way to keep your classified information, intellectual property or any other important data you wish to keep protected. Whether travelling, working in the office or sitting in a busy coffee shop, you can have a peace of mind because you know your screen is protected with the 30+/- degree privacy viewing angle. Blue Light Reduction The display privacy filter is designed to filter blue light (390nm~480 wavelength) that can cause eye strain and can disrupt sleeping patterns. The Choice of IT Pros Since 1985 StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide support for our customers both pre and post-sales. This PRIVSCNMAC15 is backed by a StarTech.com 2-year warranty and free lifetime technical support.