Uni-Ball Signo 207 Rollerball Gel Pen Green (Pack of 12) 308692000This Uni Ball Signo 207 Rollerball Pen contains smooth gel ink, which is fade resistant, water resistant and tamper proof. Featuring a 0. 7mm tip which writes a 0. 5mm line width for speedy writing and note taking, the Signo 207 has a convenient retractable design and comfortable rubber grip. This pack contains 12 pens with green ink. Rollerball pen with smooth gel ink Medium 0. 7mm tip for a 0. 5mm line width Retractable mechanism for convenience