Purchased in 2016 I used it for about three years back then, and after that, I used it as a regular small item case. It's aged and prone to staining, so I'd like to sell it as junk. I cleaned it, but some stains remain. There's dust and dirt in the hard-to-reach areas. Due to aging, is it hydrolysis? It's become prone to staining. For example, it easily gets stained with fingerprints. For those who just want a box that can keep things dry... It will be wrapped in a plastic bag and shipped in an Amazon paper bag. (Management memo: Second from the bottom, back of the storage)