Leitz Infinity products meet the requirements of ISO 16245, the standard for long-term document archiving. The products are acid-free, have been tested and certified by Paper Technology Specialists in Germany. Acid-free. Conforms to ISO 16245. A4 format. Recommended for long-term archiving of documents in national archives, museums, libraries and private companies.

Made from 100% acid-free virgin cardboard. Designed according to ISO 16245 to protect stored documents The folders can be stored in Infinity Format A4 boxes and containers.