Uni-ball SN-220 Power Tank are ballpoint pens designed to write on paper under extremely tough conditions. The ink inside the pen is pressurised to write at any angle, on wet paper and in cold temperatures of -20 degrees (Celsius)
- Click-action ballpoint pen
- Pressurised ink designed to write in tough conditions
- Non-slip grip section
- 1.0mm tip produces 0.4m lines