The Part Number is SOM-IMP. This is a three-part Special Order Form with the last copy being made of card stock. Once the special order item has arrived the top part of the card is detached and mailed as a postcard to the customer indicating that the item has arrived. The bottom part is attached to the item or filed. The price includes a Company Imprint of up to five lines. Please contact us if you need more lines, have a special configuration in mind or would like to include a logo.