Camera Blockers in Case. A clear case containing 3 individual camera blockers designed to protect your mobile devices from webcam hackers. Simply attach and press firmly to the camera lens of your device. The blocker covers your webcams when not in use and slides open when you need to use your webcam. It also locks in place to ensure the cover doesn't slide open. It can be used to cover the front camera of phones, tablets, and most laptops and PCs. ABS Plastic.