Made using quality 3M materials to provide world-class blackout privacy, Privacy Shield for 23.8" wide-screen desktop LCD monitors enables you to keep classified and/or sensitive material from being viewed by others. It protects screens from scratches and fingerprints while also minimizing glare and reducing eyestrain. It is easily installed and removed with no harm to screens. Filter stays in place when notebook is closed. It has no frame. Aspect ratio is 16:9. It measures 20-3/4" wide x 11-11/16" high. Packaging is made using 100 percent recycled content.