shipping at Additional Charge to ALASKA HAWAII , PUERTO RICO OTHER EMIRATE s up to 3/8" thick 1.6 Mil Resealable 48 X 40 ARCHIVAL STORAGE DISPLAY ACID FREE CELLOPHANE ENVELOPE , 44 INCH OPENING , LENGTH ADJUSTABLE USE FLAP TO ADJUST HEIGHT 39 , 38 , 37 , 36 , 35 , 34 , 33 ,32 , 31 , 30 , 29 , 28 , 27 , 26 , 25 , 24 , 23 , 22 , 21 INCHES Cellophane Archival Quality Acid Free FLAT Envelopes 10 Pcs 48 x 40 ACTUAL SIZE 48 7/16" x 40 1/4" + Flap FLAP WITH SEALING TAPE ON FLAP 48 inch Envelope size indicates the opening side as the first dimension NEWSPAPERS , MAGAZINES SHOWN ARE NOT INCLUDED USE FLAP TO ADJUST HEIGHT FROM 40 TO 39 , 38 , 37 , 36 , 35 , 34 , 33 , 32 , 31 , 30 , 29 , 28 , 27 , 26 , 25 , 24 , 23 , 22 , 21 INCHES SMALLER LARGER QUANTITY PRICES ON REQUEST OTHER QUANTITIES LISTED PROTECT , STORE OR DISPLAY YOUR ART PAINTINGS POSTERS PRINTS AND MORE ACID FREE = QUALITY STORAGE FOR YOUR LARGE ITEMS OR OTHER COLLECTIBLES 48 X 40 ACTUAL SIZE 48 7/16" x 40 1/4" + Flap FLAP WITH SEALING TAPE ON FLAP Envelope sizes indicates the opening side as the first dimension PLEASE ALLOW SPACE FOR THICKNESS 1.6 MIL THICKNESS 40 micron Economy Shipping Included in Price 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. BLUE KITTENS Biaxially Oriented Polypropylene Envelope with 1 1?2" Lip No heat sealing needed! Close and re-close theseclear-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 * Cannot 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. Shipping Included in Price to Continental 48 United States Additional cost for shipping to Alaska , Hawaii and US Territories , Puerto Rico 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. * Cannot be refrigerated, frozen or microwaved. * Cannot be used for baking or cooking. Crystal clear with resealable self adhesive sealing strip that protects the contents from dust, bugs, moisture, and mildew. 1.5mil (38 micron) thinkness archival quality. 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 50 + SIZES AVAILABLE SEND ME A MESSAGE WITH THE SIZE OF THE ITEM YOU ARE STORING FOR MY RECOMMENDATION AND PRICE QUOTE If you cannot find the size you are looking for listed in my store, please send me an e-mail as I have more sizes that are not listed, 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 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 We may use UPS , Fedex in place of Fedex UPS and USPS to Select Service areas at Our Discretion to improve Delivery ServiceBuyers with - 0 - feedback and less than 1 year will not be eligible to purchase and may be refunded shipping at Additional Charge to ALASKA HAWAII , PUERTO RICO OTHER EMIRATE