Rolodex Rotary Business Card File, 400-Card Capacity, Black - The Rolodex Rotary Business Card Organizer is an easily-accessible business card file system for your home or office. Your cards slide easily into protective transparent sleeves, and the business card storage organizer even comes with 24 A-Z tabs for easy indexing. Simply rotate the dial to find your letter. This Rolodex business card holder is sold individually.