Color: Purple; Green; Blue; Light Pink Size: 31*23cm Material: Plastic 1. This transparent presentation book is made of durable, lightweight plastic. Unlike ordinary folders, this binder features a modern frosted design. This simple design makes it easy to hold. High transparency inside allows for clear viewing of important papers. The seams of the pockets are also tight enough for long-term use. 2. This demo book is designed for user-friendliness. The inner pages are designed with a special indentation to make inserting and removing papers easier. There is also a label slot to help you sort documents or paperwork, allowing you to quickly find the file you need. The rounded edge of the cover is also safe and won't cut your hand during use. This sleeve protector folder can be displayed flat for easy viewing of files or documents. 3. Large Capacity: This demo manual has a variety of capacity options: each pocket can display 2 pages on each side. You can choose the right size to meet your needs. This plastic protective film folder is waterproof, protecting your important papers or sheets from moisture and mildew. 4. A4 Size: The inner sleeve fits most files and documents. It can be used to store presentation materials, essays, and other learning materials. It is also the perfect protection for important documents, certificates, contracts, sheet music, etc. You can also use this presentation book to store all your drawings and doodles, creating wonderful memories for the future. 5. Usage Cases: Whether you are a student who needs to manage a lot of study materials or documents, or an office worker who needs to handle many documents and contracts, this clear presentation manual will be a great addition to your daily life. With a large capacity and convenient design, this folder is perfect for sorting and archiving your files and documents. Bright colors will also bring a good mood to your daily life.