Not a standalone tool: a cardboard blank held by bare hand against a line is the shield's ancestral pattern and works in a pinch, but it is not this product's design — the clip system supplies the handle, the locked angle, and the reach socket that make it a tool (pairing inferred).
Not a solvent-work blade, not a wet-weather blade, not a keep-and-clean blade, not a precision fence (§2d).
Not a masking system: absorbing edge or no, overspray fog settles on the whole room, and the drops and film stay in every plan this product appears in.
And not yet a numbers product: no PDP, ad, or comparison built on this guide states its size or count until the gate clears — the discipline that distinguishes this page is refusing to decorate identity with unverified digits.
Unverified and unverified — the gate (§0). A store listing title carries a dimension pair; nothing on record states a count. Neither number prints anywhere until Hyde material confirms them.
Do they fit the 28100 clip?
Inferred yes — same PROShield line, and the clip officially holds customer-supplied cardboard — but no accepted claim states the pairing. Verify before treating fitment as fact.
Why buy these instead of cutting up boxes?
Uniformity: flat, consistent, clean-edged blanks with no creases or tape bands, ready for straight duty or scribing (2c). The free flap is legitimate — Hyde's clip description authorizes it — and this stock is the version with no surprises.
When do I replace one?
At saturation — a limp, bloomed, or wet-through working edge — and at every color change; absorbed color never wipes out (2b).
Can I use them with lacquer or oil paints?
No. Cardboard absorbs solvents and softens; solvent-borne work belongs to the aluminum shields (§2d).
Can I cut them to a custom shape?
Yes — pre-cut blanks are still sheet good, and profile-cutting is the clip system's signature capability (2c).
Why does this guide state so much less than the others?
Because this SKU's record states almost nothing — zero accepted claims, alone in the line — and this corpus does not decorate identity with unverified digits. The class knowledge above is what a buyer can rely on today.
