3M™ Anti-Glare Filters help reduce glare and mirror-like reflections. Its lightweight, thin, frameless design is easily applied and reapplied numerous times with no bubbles. Designed to fit widescreen desktop LCD monitors with a diagonally measured 20.0" viewing screen and a 16:9 aspect ratio. Actual filter dimensions are 17 7/16" x 9 13/16" (443 mm x 249 mm). Protects screen against scratches. Attaches with optically clear adhesive strips that can easily be applied and reapplied numerous times. Easy to clean; includes cleaning cloth. Limited 1-year warranty.