Pack of 10, Patented No.1 mechanism with outstanding locking force for consistently precise closing, guaranteed to close reliably even after 10,000 uses, Perfect alignment of pins and arches even when file is completely full, Spine pocket labels replaceable for easier personalisation, Cover lock thumbhole and protected metal edges for easy handling and secure document storage, PP cover made from 30% pre-consumer recycled foil, 500 A4 sheet capacity (80 gsm)