[Very strong adhesive] - When installing, align the camera and press the camera cover for 15 seconds to complete the installation. That our product will stay on your device for a long time without leaving any traces. [Ultra-thin] - The ultra-thin design will not affect the beauty and use of the device, preventing hackers from invade your privacy in time. [Simple and Convenient to Use] - This laptop camera cover can be opened or closed with a simple finger movement. [Suitable for to most devices] - Applicable to most laptops, cellphones and other devices, such as MacBok, Surface Pro, Laptop, PC, Pad, Phone and Android Smartphones. (Noticed: Not compatible with dual cameras.) [Protect your privacy] - When you use your device, it can effectively prevent someone from invading your privacy.