Made using quality 3M materials, this Full Screen Privacy Filter prevents visual hacking by darkening on-screen data when viewed from any angle on your 23.8" wide-screen monitor. It offers a 16:9 aspect ratio. Borderless privacy filter is easy to attach and remove from flat borderless computer monitors. It reduces 35 percent of blue light transmission. Matte surface helps reduce glare and hide fingerprints. Packaging is made with 35 percent recycled material that is 100 percent recyclable.