Pack contains three Blue inked pens, with Green coloured barrels. Roller Ball Pen, Stick, Fine 0.7 mm, Red Ink, Black Matte Barrel, Dozen by uniball UBC60102 s Coloured Uniball Jetstream 101 Roller Ball Pen, Stick, Bold 1 Mm Uniball Pen The 0.5 mm ball provides a line width between 0.28 mm and 0.45 mm (depending on pressure). The rollerball pens are made with Uni's high quality Super Ink which is not only water and light resistant, but also counterfeit proof, meaning the ink cannot be washed off with chemicals or solutions. Pack contains three pens with blue ink and green barrel The revolutionary nib of the Air, unlike conventional rollerballs, is pressure sensitive, meaning that it gives a writing experience and differentiating line width similar to that of a fountain pen. Uni-Ball Uni Micro Rollerball Ink 0.5 mm Tip Pen Blue Pack of 3 Liquid Ink Rollerball Pens from Uni-Ball