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  • These 4 mil sleeves are made of Archival Polyester (Mylar) an inert material of the highest clarity.
  • Polyester will not discolor, damage, or adhere to items placed inside it. It is a sturdy film that will give extra support to fragile documents.
  • Use polyester to ensure your collectibles remain in excellent condition for years to come.


    •    POLYESTER (Mylar) Sleeve 4mil
    POLYESTER (Mylar) Sleeve 4mil
    Description: 7-1/2 x 7-5/8"  4mil Archival Polyester
    Easily fits over a 45rpm vinyl record in a paper sleeve or jacket. NO flap.
    Base SKU: s77r

     
       POLYESTER (Mylar) Sleeve 4mil
    POLYESTER (Mylar) Sleeve 4mil
    Description: 7-3/8 x 7-5/8"  4mil Archival Polyester
    Snug-fit. NO flap.
    Sleeves are designed specifically to fit into our
    museum-grade storage boxes X4550BB and X4575BB.
    Use code KAF4077 for a super-archival cardboard insert.
    Base SKU: s45r