Crystal clear, heavyweight 3-mil polyester photo or negative envelopes provide excellent protection during handling and storage. The transparent polyester material makes viewing possible without removing the item from the envelope. This prevents scratching, oily fingerprints and physical damage to old or brittle prints. The film itself will not interact with the print and will help prevent adjacent items from chemically interacting with the photo or negative image. Envelopes are sealed on three sides with thermo-weld process for lasting protection. Price is per package of 10.