24x24 Poly Mailers (2.4 MIL) – Self-Seal Shipping Envelopes, Secure Seal Brand (Qty 1-1000)

These are brand new Secure Seal poly mailers, still in factory packaging—whether that’s a box or just a plain bag depends on how they came from the manufacturer.

Size is 24x24 inches, made from 2.4 mil thick plastic, so they’re sturdy enough for clothing, books, or oddly shaped items.

Self-seal closure means no tape needed—just peel and stick.

You can order anywhere from 1 to 1000 pieces, so it works whether you’re shipping one item or running a full-scale operation.

Model is listed as “Poly Mailers 19x24” in some docs, but actual size is 24x24.

MPN isn’t applicable, just a solid, unbranded option for getting your products out the door.