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 standard desktop LCD monitors with a diagonally measured 19 inch viewing screen and a 5:4 aspect ratio. Actual filter dimensions are 14 13/16 wide x 11 7/8 high (377 mm x 302 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. Compatible with most touchscreen displays.