This book sleeve, which fits well in backpacks and bags, will protect your treasured books. Avoiding marks and bent on your book coverings. The size of this Book Sleeve can fit 1x Book (3cm thickness), 2x notebooks and plenty more space to spare or 2x book and a notebook. See Photo for example. Book sleeve is lined with Blue Lining and a bow to secure your book inside. Washable: Recommended only to hand wash.