Eliminates up to 99% of glare, looks like part of a computer monitor when mounted Enhances dark-light contrast up to 18 times to make images stand out and to minimize eye fatigue. Features include optical quality glass covered with anti-reflective coating and a circular polarizer that redirects unwanted reflection above the user's eye level and Easy to install, simply slide contour-mount frame easily across the front of your current monitor, no clips, tapes or tools necessary. Fits 16-18" diagonal monitor screen. Overall dimensions: 13 15/16H x 16 15/16W x 2 3/8"D
