I love these things! Perfect for keeping a roll of money stored and hidden somewhere!

In the French prison, valuables-especially money- would be instantly stolen. Prisoners had a tube that they called a "plan" in which valuables would be stored ...And this tube was placed where the sun don't shine for safekeeping. Not a pleasant use, but ya do what ya gotta do. Steve McQueen and Dustin Hoffman starred in the movie.

Excellent workmanship. Few threads for a rapid opening, but would prefer one more 360 for security. I purchased this to have a solid container for items around salt water and wanted a zero maintenance container. It's an excellent and high quality item. Perfect for those small items to go with a signal mirror, blanket and in a medical kit as the survival component with aqua tabs, fishing gear, sewing kit, matches, tender and flint/steel. It's the perfect size and has a little more heft than aluminum. I'll dive it and see if it maintains integrity to 15 feet. Would buy again for sure.

Capsule is nicely designed and machined. Rough stone-washed exterior finish, with interior as-machined or lightly polished. Interior length exactly fits US currency. Design allows for a good grip to open - the top is squared off on both sides, and the bottom has a vertical knurling. Base is a bit heavier than the cap, so the overall capsule is bottom-heavy. Slightly heavier threading would be nice - it takes a bit of care to engage the cap. The CAGE number is deeply etched right in the middle, and wouldn't easily polish out if you wanted to make aesthetic modifications. Have not had a chance to test waterproofness.

It's a little bigger than expected, but so light that there's no drawback. Great fit and finish!