The Privacy Camera Blockers in Case packs 3 pcs of camera blockers to protect your security and privacy from mobile devices. Simply align it to your webcam attach and press firmly to make sure it sticks to the surface. It also covers your webcams when not in use and prevents webcam hackers from spying on you. It conveniently slides open when you need to use your webcam then locks in place to ensure that the cover doesn't slide open. It can also be used to cover the front camera on phones tablets most laptops and PCs.