Large Hook Bags: Larger hook design, you can either hang it on a thin rope or on a thick wardrobe hang rod. Hanging design letting you find what you need immediately. Reusable Acid-free Bags: Made from high quality 4-mil polyethylene material that prevents discoloration and protects the contents inside the bags. suitable for keeping the invoices, papers, books, fabrics and other items in. Water Proof and Dust Proof: Zipper lock sealed bags. Totally water proof and dust proof. Keep your important items safe and organized. Application: Hanging Storage Bags can save space and keep papers, books, games, puzzles, craft supplies, manuals, posters, charts and many other items organized. Suitable for teachers, librarians, doctors and family students use.