Seven leaves, two already packaged
On this page11
The group has seven leaves and every one is a small hard part
Automotive fuse, body clip, bulb storage, hose clamp, trim retainer, vacuum cap and valve stem.
Two of them arrive in their own packaging and that changes the question
Bulbs come boxed or blister packed because the glass and the filament need it, and fuses often come carded. For those two the container is organizing packages rather than parts.
Which means the useful dimension for them is footprint, not volume
A boxed bulb does not pour and does not settle. It occupies a rectangle, and a jar that is wider than it is tall holds more of them usefully than a tall one of the same capacity.
Fuses sort by rating and the rating is printed on the fuse
Which makes them the one leaf in this group that carries its own identity. A blade fuse is color coded and numbered, so a mixed jar is workable in a way a mixed jar of clips is not.
Body clips and trim retainers are the opposite case
Dozens of similar shapes, vehicle specific, unmarked, and visually hard to tell apart. They are the leaves that genuinely require one size per container and a label on the container.
Hose clamps sort by a band of diameters rather than by a value
A worm drive clamp covers a range, so a sorted set is a set of overlapping ranges. Which is a different sorting problem from a set of discrete values and usually needs fewer containers.
Vacuum caps are rubber and they are the one perishable
Rubber hardens and cracks with time, heat and light regardless of container. A cool dark jar slows that and does not stop it, and an old cap can measure correctly and split on fitting.
Valve stems are the longest part in the group
A standard snap-in stem is around an inch and a half overall. Of the 224 containers on this shelf that record a height, the median is 2.60 inches, so the shelf accommodates them comfortably.
None of the seven is a fluid and that is worth stating
The spine of this property is a rule about storing used oil. Nothing in this group is oil, no container on this shelf is offered for oil, and no page here suggests either.
What the group shares with the spine is the container question
A rule that asks about the state of a container, and a shelf whose records describe specifications. The next section is about what those specifications can actually tell a buyer apart.