Ever since the release of the original Uni-Ball Jetstream in 2006, Uni-Ball has been gradually adding new models every year. The newest colors is already here! The Jetstream was named after the high-speed outpouring of jet stream airflow from a jet plane. The goal was to create a smooth outpouring of ink from a pen onto paper. Uni-Ball improves upon this design year after year by decreasing the coefficient of friction of its Jetstream pens to create an even more smooth and comfortable experience. The pen features light and water resistant oil-based ink. In addition to its high-quality ink, this pen features a stylish design and comfortable rubber grip section. It consist of black ink