uni‑ball Power Tank RT Ballpoint Pen

The uni‑ball Power Tank Retractable Ballpoint Pen is engineered for reliability in any environment. 

Featuring a pressurised ink cartridge, this pen writes smoothly on wet paper, in extreme temperatures, and even upside down, making it the ultimate choice for outdoor work, travel, and demanding conditions.

Its retractable design ensures convenience and durability, while the textured grip provides comfort for extended writing sessions. The Power Tank delivers bold, consistent lines without skipping, thanks to uni‑ball’s advanced ink technology.

Features

• Pressurised ink cartridge for versatile writing conditions
• Writes on wet surfaces and in temperatures from -20°C to +50°C
• Retractable design for easy use and storage
• Comfortable textured grip for better control
• Available in black or blue ink

Whether you’re jotting notes in the rain, filling out forms on the go, or working in challenging environments, the uni‑ball Power Tank is built to perform when ordinary pens fail.