16" Record Sleeves - Polyester (Mylar)
17-3/16 x 17-1/4 ". 4 mil; no flap.

16" Record Polyester (Mylar) Sleeve
17-3/16 x 17-1/4 " (L x W)
4 mil; no flap

Fits inside XLP16BB 16" Record Storage Box.

Made from Library of Congress approved polyester. Polyester is considered to be the ultimate material for long-term storage. Crystal-clear material. Semi-rigid.