0.5mm ballpoint pen set featuring Duffy and Friends characters. - Brand: Duffy and Friends - Model Name: JETSTREAM - Features: Pens with character illustrations - Size: 0.5mm Thank you for viewing. This is a Duffy ballpoint pen set. Originally a set of 6, I am offering 4 unused pens. The ink is black. These were left outside in this condition for several years. Although they are unused, please be aware of this. If you don't need the backing card, please let me know after purchase. Thank you.