Ensure that your computer screen is seen only by you Filter's patented technology makes on-screen data visible only to persons directly in front of the monitor by blocking on-screen images from a side view. No blurring or image distortion; glare is reduced by up to 95%, to help prevent eyestrain. Flat mounting style makes it easy to install, no assembly required.Anti-radiation features blocks up to 99.9% of low frequency radiation emitted by the computer. Filter also protects your monitor from scratches and damage.Use the attached grounding cord to dissipate damaging static electricity, and thereby minimize the possibility of losing valuable computer data. Filter also helps prevent dust build-up on your screen.Lifetime manufacturer's warranty. Available in black. Fits 15" diagonal LCD monitors or 14-16" diagonal CRT monitors. Overall dimensions: 17 5/16H x 12 15/16W x 1/2"D