Five Star Book Sleeve/Book Cover, School Supplies, BookSleeve, Green (72431) Built Strong To Last Long. High quality fabric booksleeve stretches to fit and protect standard-size, hard back books Velcro closure keeps the book closed and contents secure 5.38 x 10 x .69 inches flat Color coordinate the booksleeve with the same-colored notebook or binder Doesn't add weight or bulkiness to your book, just protection