works half the time; needs improvement

Doesn't really work that well. Used on Amazon shipping label tried to blot out my name and address. With a new cartridge I went over and over and over and over and over and when you held label up to the light you could still make out my name and address pretty easily. To be fair it did block out the label on a plastic package just not the manila package. Its pretty cheap but not sure I'd buy again.

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