I read another review that said they don't work on some devices which is helpful info. I use them on my Surface (both front and back), my Dell work laptop and my kids use them on their school Lenovo Chromebooks and their personal Dells. However, almost all of our devices are several years old and don't have new, pulled-up cameras or anything that doesn't lay flat. They are easy to open and close. What I really like about them is that you can easily tell if they are open or closed because they are solid. I have others that open on both sides and I prefer these to these.
Backpack Xiaomi Mi City Backpack 2 dark gray
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10.3" Lenovo Tab M10 FHD Plus 2nd Gen TB-X606F (2020), RU, 2/32 GB, Wi-Fi, Silver
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16" Apple MacBook Pro 16 Late 2019 3072x1920, Intel Core i7 2.6 GHz, RAM 16 GB, DDR4, SSD 512 GB, AMD Radeon Pro 5300M, macOS, RU, MVVJ2RU/A, space gray
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Backpack XD DESIGN P705.571 black
32 Review