Self-adhesive 2-way privacy filter for 39.6 cm (15.6") notebooks Dual filter limits viewing angle to ±30 Self-adhesive filter is easily applied and removed as needed Blue light reduction: Filters out the harmful rays by up to 48%, easing eye strain and aiding natural sleep patterns Touch screen compatible with anti-fingerprint coating: Up to 3H hardness, makes fingerprints on the filter surface invisible Anti-glare coating: Reduces glare from any outside light sources