---
product_id: 10601232
title: "Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 10"
brand: "uni-ball"
price: "¥6427"
currency: JPY
in_stock: true
reviews_count: 13
category: "Uni Ball"
url: https://www.desertcart.jp/products/10601232-uni-ball-power-tank-ballpoint-retractable-and-fine-ballpoint-pen
store_origin: JP
region: Japan
---

# Writes in extreme temps down to -20°C Ink flows smoothly on wet paper & upside-down 0.7mm fine tip for precise writing Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 10

**Brand:** uni-ball
**Price:** ¥6427
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write Boldly, Anywhere, Anytime — Because Your Ideas Deserve Power.

## Quick Answers

- **What is this?** Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 10 by uni-ball
- **How much does it cost?** ¥6427 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/10601232-uni-ball-power-tank-ballpoint-retractable-and-fine-ballpoint-pen)

## Best For

- uni-ball enthusiasts

## Why This Product

- Trusted uni-ball brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Value-Packed Set:** Ten pens to keep your desk, bag, and meetings fully stocked.
- • **All-Weather Warrior:** Reliable performance from freezing cold to rainy days—write without limits.
- • **Unstoppable Ink Flow:** Pressure-driven ink delivery ensures smooth writing anytime, anywhere.
- • **Ergonomic Rubber Grip:** Comfort meets control for marathon note-taking sessions.
- • **Retractable Convenience:** Sleek, pocket-ready design with no cap to lose.

## Overview

The Uni-ball Power Tank 0.7mm ballpoint pen features a pressure-driven ink system that writes smoothly even upside-down, on wet paper, and in temperatures as low as -20°C. Its fine tip and rubber grip provide precision and comfort, while the retractable design offers practical portability. This value set of 10 pens is perfect for professionals who demand reliable performance in any environment.

## Description

Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 10

## Features

- Ink is always pushed out by the pressure of air
- Ideal for the outdoors or the work which stands and comes out, since it can write also upward
- It is suitable also for writing to a calendar.
- Even if it writes quickly, it is stabilized and ink is pushed out.
- Writes on wet paper, upside-down, in temperatures down to -20 °C

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00F91GG9O |
| Additional Features | Retractable |
| Age Range (Description) | Teen |
| Age Range Description | Teen |
| Best Sellers Rank | #60,669 in Office Products ( See Top 100 in Office Products ) #1,847 in Ballpoint Pens |
| Body Shape | Round |
| Brand | Uni-Ball |
| Brand Name | Uni-Ball |
| Closure Type | Retractable |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 241 Reviews |
| Drill Point | Fine |
| Grip Type | Rubber |
| Hand Orientation | Ambidextrous |
| Included Components | Ink Cartridge |
| Ink Base | Water |
| Ink Color | Black |
| Item Dimensions | 3.1 x 1.1 x 5.6 inches |
| Manufacturer | universal |
| Material | Rubber |
| Material Type | Rubber |
| Model Number | 1 |
| Recommended Uses For Product | Writing |
| Style | Refillable |
| Unit Count | 10 Count |
| Writing Instrument Form | Ballpoint Pen |

## Product Details

- **Age Range (Description):** Teen
- **Brand:** Uni-Ball
- **Color:** Black
- **Ink Color:** Black
- **Writing Instrument Form:** Ballpoint Pen

## Images

![Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 10 - Image 1](https://m.media-amazon.com/images/I/61Pj-6qp9wL.jpg)

## Questions & Answers

**Q: Will thease work good in a warehouse freezer  writing on paper**
A: Yes they do I have worked with them outside in the extreme cold outside

**Q: Does the ink fade, or is it archival quality and good for checks etc.?**
A: I have used these pens for years and love them.  I have never had any fading problems.  But, I can not state that they are 'archival quality'   But, I do love the pens, and I have papers 2-4 years old with no fading.

**Q: Are these 0.7? Description says they are, but picture shows 0.5.**
A: Of the pictures shown only one is showing up as 0.5 and it won't allow me to zoom in. I believe it might be an error showing the wrong pen. The other clear picture, that's zoom-able, is clearly showing 0.7. I don't recall ordering any 0.5 pens. I only have the 1.0 and 0.7 sizes. I still have a few dozen pens left. They never stop working until they completely run out of ink. I prefer the smoother 1.0 size personally. The 0.7 is great for when I need clear precise writing in very small spaces. Great pen!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***I on September 24, 2025*



### ⭐⭐⭐⭐⭐ Review
*by R***R on October 12, 2024*



### ⭐⭐⭐⭐⭐ Review
*by J***O on December 23, 2024*



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**Shop now:** [https://www.desertcart.jp/products/10601232-uni-ball-power-tank-ballpoint-retractable-and-fine-ballpoint-pen](https://www.desertcart.jp/products/10601232-uni-ball-power-tank-ballpoint-retractable-and-fine-ballpoint-pen)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-31*