Avery 73517 Slide & View Expanding File, 5 Pockets, Polypropylene, Letter, Black Keep projects organized and sub-divided in one place. Five pocket file expands as each section slides apart for easy access and visibility. Collapses and closes securely for easy portability. Elastic closure keeps documents secure. File fits nicely into a file cabinet for long-term storage. Clear vinyl allows you to see the contents of the envelope Sealed on three sides to ensure papers and other items don&#039;t slide out Heavyweight vinyl protects documents against water damage Perfect for passports, papers and other loose items