Acid Free Archival Film Bag Album Film Protector Storage Box Archival Binder with Ring for Printfile Standard 135 35mm 120 4x5 8x10 Negative Pages Film Bag(135) : Amazon.co.uk: Electronics & Photo
Archival, acid-free storage boxes for 120 film negatives. - Preservation Equipment Ltd
Negative Storage Folder - Digital and film-based photographic printing & products
Print File FlipTop Negative Strip Storage Box for 35mm/120 Film - Black
All-in-One Film Storage System for 35mm | 120mm | 4×5 Negatives & Film - Archival Methods Blog