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 laptops with a diagonally measured 15 916 viewing screen and a 169 aspect ratio actual filter dimensions are 13 916 wide x 7 58 high 345 mm x 194 mm protects screen against scratches attaches with optically clear adhesive strips that can easily be applied and reapplied numerous times ea