The products

Four leaves, two of them loose fill

On this page11

The group has four leaves and they split three to one Ballast is crushed stone graded to a scale And it is heavy for its volume Static grass is the opposite physical problem Which makes a plastic container actively unhelpful for it Scenery material is a category rather than a thing Coupler parts are the one discrete leaf and the smallest So the group wants both ends of the shelf at once None of the four is paint The one thing the group shares with the spine is a question about color References

Ballast, scenery material, static grass, couplers. Three pours and one does not.

The group has four leaves and they split three to one

Ballast storage, scenery material and static grass are loose fill. Coupler parts are discrete hardware.

Ballast is crushed stone graded to a scale

Which means a layout uses several grades and each one has to stay separate, because mixed ballast cannot be sorted back out. It is the clearest one-size-per-container requirement in this group.

And it is heavy for its volume

Stone is dense, so a large jar of ballast is a heavy jar. On a shelf where 56 of 251 containers are glass, that favors the plastic side for the larger sizes.

Static grass is the opposite physical problem

Fine synthetic fiber, a few millimeters long, light, and it takes a static charge readily, which is the property the product is named for and sold on.

Which makes a plastic container actively unhelpful for it

A charged plastic wall holds the fiber against itself rather than letting it tip out, and glass does not do that. The same finding appears on the keys and security property for a different light part.

Scenery material is a category rather than a thing

Foliage, turf, talus, lichen, foam, sand. Which makes it the leaf where a set of identical containers matters most, because the sorting key is a name rather than a size.

Coupler parts are the one discrete leaf and the smallest

A knuckle coupler, a draft box, a centring spring. Tiny, and in some scales under three millimeters, which puts them at the small end of the shelf and makes the closure the component that matters.

So the group wants both ends of the shelf at once

Large plastic jars for ballast, small jars for couplers, and glass for static grass. Which is three different answers and it is why the family count on the next pages is the useful measurement here.

None of the four is paint

And none of them bears paint in the sense the definition uses. Scenery material is colored through and ballast is stone. Nothing on these pages says part 1303 reaches any of them.

The one thing the group shares with the spine is a question about color

Where color comes from. A pigment in a plastic article is the substrate and a film on a surface is a coating, and the definition in the rule turns on exactly that difference.

References

The four leaves in this group as the catalog indexes them: ballast storage, coupler part, scenery material and static grass. 16 CFR part 1303 bans lead-containing paint and certain products bearing it, and does not reach any of them.

16 CFR 1303.2(b). Paragraph (1): "Paint and other similar surface-coating materials means a fluid, semi-fluid, or other material, with or without a suspension of finely divided coloring matter, which changes to a solid film when a thin layer is applied to a metal, wood, stone, paper, leather, cloth, plastic, or other surface. This term does not include printing inks or those materials which actually become a part of the substrate, such as the pigment in a plastic article, or those materials which are actually bonded to the substrate, such as by electroplating or ceramic glazing." Paragraph (3): "Toys and other articles intended for use by children means those toys and other articles which are intended to be entrusted to or for use by children. This would not include all articles to which children might have access simply because they are present in a household." Paragraph (4) defines furniture article, naming beds, bookcases, chairs, chests, tables, dressers, desks, pianos, console televisions and sofas, and excluding appliances, fixtures and "household items such as window shades, venetian blinds, or wall hangings and draperies." law.cornell.edu

Written from 16 CFR part 1303 and from the catalog as it stood on 19 October 2026. Part 1303 bans lead-containing paint and certain products bearing it; it does not govern ballast, couplers, scenery material or static grass, and it does not reach any container on this shelf. Nothing here states the lead content of anything, whether any product is a toy or article intended for use by children, or whether any coating complies with anything, and nothing here is guidance about using, stripping or disposing of paint. This shelf is shared identically by nine groups and the sewing notions property enumerates the inventory.