Designed to fit A4 notebooks and books (297mm x 210mm). Features an integrated, adjustable design to accommodate books of varying thicknesses. Made from waterproof PP material to protect your books from spills and moisture. Strong and flexible, these covers won't deform easily. Thick and transparent for durability and reusability. Protect your textbooks, folders, and notebooks from dust, dirt, bending, tearing, and dog-eared pages. Features: Made of environmentally friendly PP, durable and long-lasting. Adjustable design on one side to fit the thickness of different books. Can effectively protect the book from getting wet. Protect children's books from dirt, moisture and bending. A set of 10 pieces, well worth it. Specification: Material: PP Size: 420 x 295 mm Color: Transparent Package Includes: 10 x Transparent Book Covers