uni-ball Power Tank SN-220 Blue Ink Ballpoint Pens. 1mm Rollerball Tip for Smooth Writing. Ideal for School. Water Resistant Ink, Writes On Wet Paper, In Extreme Cold, At Any Angle. 2 Pc Multipack

• VERSATILE - Write in temperatures as low as -20°C, upside down and on wet paper.
• COMFORTABLE - Thanks to its chunky rubber grip.
• RETRACTABLE NIB - For speed of use.
• BROAD - 1.0mm ball writes a 0.4mm line.
• PRESSURISED - Writes at any angle.

The uni-ball Power Tank pen’s pressurised tank makes it the pen for even the most extreme conditions. The Power Tank allows you to write in temperatures as low as -20°C, upside down, on wet paper – it will even write in zero gravity should you ever require it to. A rubber grip provides comfort and this retractable ballpoint pen just won’t let you down. 1.0mm ball. Available in black and blue.