1、Transparent and Clear: The book jacket covers are a transparent book cover, which is environmentally friendly, waterproof and has no odor 2、3 Sizes: The book jacket covers are available in a variety of sizes, which require no cutting and are extremely easy to install 3、Waterproof and Reusable: The plastic book covers are waterproof and oil proof, and can be used repeatedly or multiple times 4、PP Material: The clear book cover is made of pp material, which is wear resistant and durable and can be used with confidence 5、Effective Protective: The clear book cover helps you protect workbooks and books from dust, bends, tears A4 Book Cover with Rod C300 Item Type: Book CoverMaterial: PPA4 Size: Approx. 31 x 21cm / 12.2 x 8.3in16K Size: Approx. 26 x 19cm / 10.2 x 7.5in22K Size: Approx. 21 x 15cm / 8.3 x 5.9in