MAX PRO 25 ct pack ADJUSTABLE Archival LIBRARY / BOOK / Manga COVERS 7 3/8 x 12 MAX PRO 25 ct pack ADJUSTABLE Archival LIBRARY / Paperback / BOOK / Manga COVERS 7 3/8 x 12 Cover measures 7 3/8 x 12 (7.5 Tall) with a 1.25 inch fold over for seal. Measure the width of the the front and back cover plus the width of the spine of your book to see if it will fit. 25ct pack of Covers - Fits books 7 3/8 inches tall & maximum of 10.75 total or smaller (front cover + Back cover + spine). Excellent Quality and Durability.