Archival-safe material ensures that your documents are safely guarded. Non-stick cover won't lift print away. Lightweight, durable plastic is sealed on two sides to keep loose papers securely tucked within. Thumb-notched style for easy access. File Jackets/ Sleeves/Wallets Type: Sleeve; Material(s): Polypropylene; Height: 11 in; Width: 8 1/2 in.