King International Stainless Steel Pyramid Tiffin Lunchbox
King International's conical-shaped stainless steel tiffin carrier is among the more unique-looking lunchboxes you're sure to ever encounter.
When stacked together, its three different-sized layers (along with their lids) create a kind of pyramid shape, all of which locks into place with a separate clamping mechanism that then becomes a carry handle for easy portability.
Here's what the containers look like when they're not stacked:
Get this vintage-styled tiffin for $26 on Amazon.