I have a 13 inch MacBook Pro with a full glass screen. It doesn't stick properly. I cleaned the entire screen with lens cleaner using a lint free cloth to ensure it was oil/lint free and taped it to the camera. Sliding the lens cap moves the entire subject. Terrible sticky quality. This might work with my old MacBook Air, which had an aluminum frame around the glass screen, but it definitely doesn't stick to new all-glass MacBooks. I strongly recommend NOT. Save money.
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