45 rpm Record POLYESTER (Mylar) Sleeve
7-3/8 (w) x 7-1/4" 4mil Snug-fit. NO flap. Use for Indefinite Archival Storage of your most valuable 7" records.
Sleeves fit over a 45 rpm original carboard record jacket
They are designed specifically to fit into our
museum-grade storage boxes X4575BB.