Rolodex Rotary Business Card File with Swivel Base, 500-Card, Black (66871). Swivels to give you 360-degree access to all of your contacts. Large, easy-grip textured knobs make it easy to find the card you need. Smoke-colored transparent cover keeps cards dust free, prevents fading, and flips into base when not in use. Base has non-skid feet to prevent desktop scratches. Includes 500 2- by 4-inch blank cards and 24 A-Z index dividers. 8.37 inches long by 7.37 inches wide by 7.75 inches high.