Easily attaches to the frame of a MacBook Air using embedded magnets - No setup or potentially damaging adhesives required - Allows the MacBook Air to completely close and enter sleep mode while the privacy screen filter is attached - Also includes a webcam notch for an unhindered video conferencing experience - Narrows the field of vision to ±30° - Reduces blue light to ease eye strain - Antimicrobial coating and low reflective coating - Reversible for use in various environments