Based on this product's specifications, here are some alternatives and similar models
Conference folder A4 Easy Safe — black, document organizer for A4 papers
Summary description:
Conference folder A4 Easy Safe is a black document organizer designed to hold A4 papers. It provides a secure solution for transporting notes, handouts and materials during meetings, seminars and conferences. The folder is suitable for everyday office use, training sessions and client presentations where organized storage and quick access to documents are required.