Anti-Glare Filter reduces glare and mirrorlike reflections, making your 19" LCD monitor easier to use in high-glare situations. It can also protect your screen against scratches. Its lightweight, thin, frameless design is easily applied and reapplied numerous times with no bubbles. It attaches with optically clear adhesive strips. Easy-to-clean filter is compatible with most touch-screen displays and includes a cleaning cloth. Aspect ratio is 5:4.