Rotary card file offers a reliable & easily accessible way to flip to the contact you need. It sets up easily on your desk. Turn the knob to locate a name & contact information on the removable cards. The black metal tubular base features anti-slip rubber pads to protect your desktop. Refillable card file includes 250 cards with A-Z dividers for easy organization. Refill with cards that measure 4" x 2-1/2".