SPECIFICATIONS Length: 28mm / 1.1 inch Thickness: 0.8mm / 0.03 inch Width: 9.9mm / 0.39 inch Gap Between: 6.85mm / 0.27inch Simple to use, clean minimalist design. Ultra-Thin, It measures only 0.028 inches in thickness which means it will not interfere with the closing of your laptop lid, perfectly combine with your devices.INSTALLATION 1.Clean the surface of your device?2.Tear off the back sticker, then align the lens and attach the protective cover to the lens;3.Press it firmly in place and hold for about 10 seconds, which helps the adhesive be more durable;4.Simply place your finger on the slider and slide to cover or uncover your webcam. PROTECTS YOUR SECURITY AND PRIVACY 1. Someone could be watching you through your webcam, and you have not even realized it. 2. More and more reports show that many innocent internet users that are being subject to unauthorized from the webcam. 3. Most hackers use malicious software or remote administration tools to gain access to random users' computers and record their activity by webcam sessions, your actions could become public if your webcam becomes hacked. 4.The best way to protect your privacy is to cover the camera when you are not using it.