Handy Size for snacks, or items that you don't have lots of. It also helps use the vertical space if you can go 3 high in a cabinet so it's sits on top of a 2.

Our local store is often sold-out of this size -- we ALWAYS have a few in use.

I keep this next to my stove because it’s the perfect size to hold salt to cook with. It opens easily yet stays firmly in place.