Eagle Business Card Holder, Push-Button,Storage up to 350 Cards Easy to open with one press of a button. Distinctive black tray with a clear plastic cover Includes 20 pieces A-Z guides for organization Storage capacity: 300 to 350 cards, depends on the thickness of the cards(cards not included) Fit for business card size 2" X 3-1/2". Box dimension: 146*101*75 mm. It doesn't work with rolodex fill card.