plastic prong folders

They use metal prong fasteners — described in listings as prong fasteners, metal prongs, metal clasps, or pronged binder fasteners — to secure papers.

Most listings show two interior pockets as standard. Other common features include an interior/business card slot, stay‑put corner tabs, and writable label areas; one listing also notes an external pocket option.

Many listings describe the folders as durable or sturdy; at least one description calls the cover “water‑resistant.” Review summaries mention sturdy, waterproof materials and long‑lasting use for some models.

Several descriptions specify metal prongs, metal clasps, or prong fasteners as the feature used to secure and organize three‑hole (3‑hole) punched papers inside the folder.

The folders are made from plastic materials (listed as plastic, poly, or polypropylene) and use metal for the prongs/fasteners.

Dimensions shown are around 9–11.6 inches (examples: 9.5 x 11.5, 11.6 x 9.3, 9 x 12). Several descriptions explicitly state the folders fit standard 8.5 × 11 inch letter paper.

Available pack sizes in the listings include single folders (Package Quantity: 1), 3‑packs, 12‑packs, and case packs (48).

Most prong‑folder listings show two interior pockets. External pockets were mentioned only for a non‑pronged folder in the available details, not for the pronged models shown.