CLEAR CELLO ENVELOPE SLEEVE BAG CELLOPHANE ARCHIVAL STORAGE DISPLAY ENVELOPE Cellophane Archival Quality Acid Free Resealable Envelopes 5 Pcs - 20 x 30 20 7/16 x 30 1/4 + flap, ( 519x768 mm ) actual size PROTECT YOUR LARGE COLLECTIBLES NEWSPAPERS PRINTS PORTRAITS AND MORE ACID FREE = QUALITY STORAGE FOR YOUR LARGE NEWSPAPER 's LARGE MAGAZINES OR OTHER COLLECTIBLES PLEASE ALLOW SPACE FOR THICKNESS 1.6 MIL THICKNESS 40 micron Economy Shipping available to Continental 48 United States Additional cost for shipping to Alaska , Hawaii and US Territories , Puerto Rico Cellophane Envelope Bag Sleeves " RESEALABLE ENVELOPES " Crystal clear with resealable self adhesive sealing strip that protects the contents from dust, bugs, moisture, and mildew. 1.6 mil (40 micron) thinkness archival quality. Biaxially Oriented Polypropylene Envelope with resealable Flap No heat sealing needed! Close and re-close these clear-as-glass cello-style bags. · Peel off strip. Fold to seal with ease. · Resists moisture and grease. · Archival safe. FDA and USDA compliant * Acid free and archival safe. * Crystal Clear * Sulfur free * Silicon free * Latex free * Recyclable * Can not be refrigerated, frozen or microwaved. * Cannot be used for baking or cooking. * Bag may become brittle in cold weather. * Not recommended for shipping in cold weather with a unique crystal clear solution, provide 'Retail Pack' appearance and beautiful finished look for your product. These bags are made of Polypropylene( Cellophane envelopes / Cello bags ), it is an all together different resin than Polyethylene( Poly Bags ). Cello bag is non-porous, super-clear, non-stretching and generally stronger and more rigid than Poly bags. This quality is commonly used for displaying merchandise at retail. THESE ACID FREE ARCHIVAL STORAGE ENVELOPES ARE OF THE HIGHEST QUALITY , THEY ARE EVEN FDA/USDA approved for food use. MAGAZINES AND CHICAGO TRIBUNE NEWSPAPER FROM 1899 TO DATE PROTECTED BY CELLOPHANE ARCHIVAL ENVELOPES with a unique crystal clear solution, provide 'Retail Pack' appearance and beautiful finished look for your product. These bags are made of Polypropylene( Cellophane envelopes / Cello bags ), it is an all together different resin than Polyethylene( Poly Bags ). Cello bag is non-porous, super-clear, non-stretching and generally stronger and more rigid than Poly bags. This quality is commonly used for displaying merchandise at retail. The envelope / bag feels crinkly not soft like sandwich bag. WE HAVE over 70 SIZES in stock over 200 AVAILABLE with more being added WE REALLY APPRECIATE YOUR STOPPING BY all returns are subject to a 20% return / restock / handling charge , any return will also forfeit any multiple item discount for other item purchased at the same time when applicable envelope , bag , sleeve , flap seal , acid free , lignin free crystal clear 75 sizes in stock ready to ship , over 200 sizes available Economy Shipping available to Continental 48 United States Additional cost for shipping to Alaska , Hawaii and US Territories , Puerto Rico Features Benefits: Crystal Clear Flap Seal Envelopes have the following features: Crystal Clear Optical Clarity High quality material will not easily rip, tear, wrinkle, or fog Resealable adhesive strip on the flap of the bags (allows you to customize the fit) with the exception to the Protective Seal where the seal is on the body of the Envelope which leave little for adjustment Fast insertion and sealing Acid and lignin free Archival safe 1.6 Mil / 40 micron thick USPS approved Made with 10% recycled content Acid Free , Lignin Free , So why does all this matter? Simply put, acid and lignin cause paper to deteriorate. A good example of this is newspaper. You will notice that after only a couple of days, newspaper begins to turn yellow and brittle. The same will happen to your scrapbook and photographs over time if the proper materials are not used. These materials do not only include paper? adhesives, pens, markers, stickers, and anything else that comes into contact with your photographs must be acid and lignin free. AVAILABLE IN SIZES UP TO 60 " X 40 " 1.6mil (40 micron) thinkness archival quality. PLEASE ALLOW SPACE FOR THICKNESS Buyers with - 0 - feedback and less than 1 year will not be eligible to purchase and may be refunded