3x4x1 is still almost thrice the size of an altoids tin (4.6ci). It rivals the small Pelican and Otter boxes. Even if you lose a cubic inch to rounded corners and the thickness of the plastic, once you take the organizers out it is going to hold a lot of stuff.

You could probably get a PSP in there if you went with a smaller mirror...
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.