They hold up quite well on my MacBooks. They're not unobtrusive though - my Macbook Pro and MacBook Air don't fully close. I don't mind, but if you think it bothers you, you'd better choose another product.
Blocker Computer MacBook Notebook Protector๏ผ6
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6 Pack Webcam Cover Black - NanoTech Reusable Adhesive Protection for Laptops, Smartphones, Tablets, Desktops - Works on Any Electronics Surface - Safeguard Your Privacy
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Laptop Webcam Cover Slide: Ultra Thin Round Hole Camera Blocker for MacBook, PC & More (3 Black + 3 White)
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๐ TechPrivacy Webcam Privacy Cover (3 Pack) - Ultra Slim Slide for iPhone, iPad, Laptops, Macbook, Dell, Lenovo, HP & More - Protect your Privacy
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