Our most versatile tip technology is proprietary to Cross, and is known as Selectip Rolling Ball. A Selectip allows you to "select" the kind of refill you want to use in this writing instrument from the following options: All Cross products are shipped in boutique-quality gift packaging that you'll be proud to give as a gift. Includes 1 Black Gel Ink Rolling Ball Refill (8523) in pen Cross ATX Ballpoint Pen - Basalt Black Official Cross Product Comes with official Cross packaging Swivel-action propel/repel feature Cross ATX Ballpoint Pen - Basalt Black Official Cross Product Comes with official Cross packaging Swivel-action propel/repel feature