Nobody examines a drinks can. That is the entire mechanism: a diversion safe works by being ordinary rather than by being clever, and a soda can is the most ordinary object in most kitchens.
It works among other cans — a fridge door, a shelf, a drawer that already has drinks in it. A single can standing alone on an empty shelf is more conspicuous than a locked box, not less. Placement is the product.
This conceals visually and nothing more. The manufacturer makes no smell-proof or airtight claim for it and neither do we; a screw thread is not a gasket. Anything you are actually keeping goes in a proper jar — see Keep It Fresh — and that jar can go in here.
Amazon lists this as non-returnable (it is classified as a food item) and it ships from a third-party seller rather than from Amazon, so delivery runs slower than Prime. Worth knowing if you need it by a date.