Sold as 1 Dozen. Retractable rollerball pens are ready to write with just a click. One dozen pens per pack. Unique liquid ink system provides even flow and smooth marking. Black ink has a rich color for excellent readability. Comfort grip for superior control. Extra-fine 0.5mm tip ensures crisp lines with every use. Features a pocket clip for convenient carrying. Black barrel. Refillable ink allows pens to be reused instead of replaced to save money.