Review on COOLOO Webcam Cover Slide 6-Pack - Ultra-Thin Laptop Camera Cover Slide for iMac, MacBook Pro, iPhone, PC, iPad Pro, Desktop, Smartphone, Echo Show - Protect Your Privacy and Security (Red Black) by Manuel Gfx

This is the cheapest offering out of all the others at Revain but the color is easy as it's only black and comes in a small pack of six. And if you only use 4, don't worry about keeping the other two. The packaging is easy to open and leftover lids can be easily stowed away. It sticks to your phone, but it's not difficult. Good for iPhone but not sure on other phones. It slides easily without effort and is stable so it stays in place even after you let go of the lid.