Measurements (with no book placed inside): Length: 9 inches Width: 7 inches Height: 0.5 inches These book sleeves best-fit books that measure 5.5in x 8.14in x 1in Given that these book sleeves are crochet and are able to stretch depending on the size of the book, book sizes can vary! If you have any questions, concerns, or any interest in custom modifications, don't hesitate to reach out and send me a message!