Most snap-close plastic envelopes are made from polypropylene (PP). Some budget or "savings" style wallets use polyvinyl chloride (PVC).
Sizes range from small savings-style envelopes (about 4.53 × 4.13 inches) up to A4-style folders roughly 12.6–12.8 inches by about 9–9.3 inches.
Common closures include snap buttons, clasp-style buckles on some savings wallets, and snap-closure designs used on A4 file folders.
They’re used to organize documents and small items for office, school, home, and travel. Typical contents listed include papers, pencils, receipts, craft supplies, cosmetics, letters, and cards.
They can hold small non-paper items such as pencils, craft supplies, cosmetics, cards, and receipts. Savings-style pockets are also listed for organizing bills, cards, or notes.
+ 6