---
product_id: 268180816
title: "PowerTank RT Black Pens 12 Pack, 1.0mm Bold Ballpoint Pens, Office Supplies"
brand: "uni-ball"
price: "AR$113418"
currency: ARS
in_stock: true
reviews_count: 5
category: "Uni Ball"
url: https://www.desertcart.com.ar/products/268180816-powertank-rt-black-pens-12-pack-1-0mm-bold-ballpoint
store_origin: AR
region: Argentina
---

# Fast-drying ink Rugged, durable design Water & fade resistant PowerTank RT Black Pens 12 Pack, 1.0mm Bold Ballpoint Pens, Office Supplies

**Brand:** uni-ball
**Price:** AR$113418
**Availability:** ✅ In Stock

## Summary

> 🖊️ Power through your day with the pen that never quits!

## Quick Answers

- **What is this?** PowerTank RT Black Pens 12 Pack, 1.0mm Bold Ballpoint Pens, Office Supplies by uni-ball
- **How much does it cost?** AR$113418 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/268180816-powertank-rt-black-pens-12-pack-1-0mm-bold-ballpoint)

## 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

- • **Indelible & Secure:** Uni Super Ink bonds permanently to paper, protecting against fading and fraud
- • **Comfort Meets Control:** Textured grip ensures fatigue-free writing during long sessions
- • **Transparent Ink Window:** See your ink level at a glance—never get caught without a pen again
- • **Write Anywhere, Anytime:** Reliable ink that flows smoothly even upside down and on wet surfaces
- • **Built to Brave the Elements:** Rugged construction withstands extreme weather and tough conditions

## Overview

The uni-ball PowerTank RT Black Pen 12 Pack features bold 1.0mm ballpoint tips with fast-drying, water-resistant ink that writes smoothly on virtually any surface, including wet and upside down. Designed for professionals and outdoor enthusiasts, its rugged, durable body and textured grip provide comfort and reliability in extreme conditions. The indelible Uni Super Ink ensures your writing stays sharp and secure, while the transparent barrel lets you monitor ink levels easily. Perfect for office, fieldwork, or everyday use, this pack of 12 pens combines innovation and toughness in one sleek package.

## Description

Step into a world of timeless elegance and unparalleled craftsmanship with Uniball, a brand that has woven its legacy into the fabric of fine writing instruments. With a heritage rooted in innovation and a commitment to excellence, Uniball has consistently delivered a writing experience that stands the test of time. Immerse yourself in the art of writing with Uniball's meticulously crafted pens, proudly made in Japan. Our legacy of precision and quality is evident in every stroke, ensuring that your thoughts flow seamlessly onto paper with each movement of the pen. From Gel Pens to Rollerball Pens, Ballpoint Pens to Fineliner Pens, and Mechanical Pencils, Uniball offers a comprehensive range that caters to every writing style and preference. Dive into a world of versatility with Uniball's diverse range of tip sizes, spanning from the ultra-micro 0.38 for intricate detailing, to the bold 1.0 for striking emphasis. Whether you're sketching, journaling, note-taking, or bringing ideas to life, Uniball empowers you to effortlessly transition between strokes, giving your writing a unique dimension that captivates the eye and stirs the soul. As you hold a Uniball pen in your hand, you're not just embracing a writing instrument – you're embracing a legacy of craftsmanship, innovation, and the pursuit of perfection. Each pen is a testament to our dedication to providing you with an unmatched writing experience, where every word is an ode to the art of communication. Start your story with Uniball, where heritage meets modernity, and each stroke is an invitation to immerse yourself in a world of boundless expression. Join a community of discerning individuals who appreciate the value of quality, heritage, and the power of the written word. Experience the magic of Uniball for yourself and discover the joy of writing that transcends time and leaves an indelible mark on every page.

Review: My go to pen - My favourite pen. Writes upside down, on wet paper and many other surfaces. Also a nice pen to write with, flows well.
Review: Great pens. - These are the only pens that will still work after sitting in my car for any length of time. Pressurised and they work.

## Features

- Fast-flowing and long-lasting ink - With its quick-drying, smooth ink, the Uni-ball Power Tank RT ballpoint pen is perfect for delivering precise lines in any situation. The ink also lasts long, giving you a reliable writing tool
- Durable and rugged design - The Power Tank RT is built to withstand tough conditions, making it great for outdoor use, extreme weather, and wet surfaces. Its rugged design ensures the pen will last
- Comfortable and controlled writing - The textured grip provides comfort and control, even in tough conditions, allowing you to write with ease. It's perfect for professionals and outdoor enthusiasts
- Superior protection - The uni Super Ink forms an indelible bond with paper, protecting anst fading, water, and fraud. Your writing will stay put, whether you're composing a professional doent or jotting notes outside
- Multiple Options - We offer bulk pens and colored pens so you're always covered whether you need black pens, red pens, or blue pens; as well as ballpoint pens, and rollerball pens for home supplies, office supplies, school supplies, or work supplies.Additional product information is not available for this item.One Dozen;

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001B0B04S |
| Additional Features | Retractable |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Animal Theme | no animal theme |
| Best Sellers Rank | #81,901 in Office Products ( See Top 100 in Office Products ) #1,701 in Retractable Ballpoint Pens |
| Body Shape | Round |
| Brand | uni-ball |
| Brand Name | uni-ball |
| Closure Type | Retractable |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.8 out of 5 stars 1,037 Reviews |
| Drill Point | Medium |
| Global Trade Identification Number | 00070530420708, 50070530420703 |
| Grip Type | Textured |
| Hand Orientation | Ambidextrous |
| Hardness | HB |
| Included Components | 12 pens |
| Ink Base | Water |
| Ink Color | Black |
| Ink colour | Black |
| Item Diameter | 1 Millimeters |
| Item Dimensions | 16 x 143 x 13 millimeters |
| Item Type Name | Ballpoint Pen |
| Item Weight | 109 g |
| Line Size | 1_0_1_9mm millimeters |
| Manufacturer | Uni-ball |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | Power Tank |
| Model Number | 42070 |
| Pattern | Solid |
| Recommended Uses For Product | Writing |
| Style | Medium Point |
| Theme | durable writing tools |
| UPC | 799198174333 801593363240 799916153800 809302146511 809099276668 844998052111 638458798752 030246420706 800011406330 069060164091 806792164551 823019777110 800188045639 070530420708 641438674205 804993626243 640206536387 641438202484 780411900945 |
| Unit Count | 12 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Ballpoint Pen |
| Writing Technique | ballpoint |
| Writing instrument form | Ballpoint Pen |

## Product Details

- **Age range (description):** Adult
- **Brand:** uni-ball
- **Colour:** Black
- **Ink colour:** Black
- **Writing instrument form:** Ballpoint Pen

## Images

![PowerTank RT Black Pens 12 Pack, 1.0mm Bold Ballpoint Pens, Office Supplies - Image 1](https://m.media-amazon.com/images/I/715X2tKHd9L.jpg)

## Questions & Answers

**Q: I'm assuming this isn't a gel pen, rolling ball pen, or the smooth writing uniball signo pen?  I don't want it to smear.**
A: This is the greatest pen I have ever used. I started buying them when I did private security and had to write reports outside in the rain. This pen, the Power Tank, will write in sub-zero temps, upside down, and even under water. I have never had it smear on me. I sent some to my wife when she went through Army boot camp and she loves them also. When she deployed for a civil mission with the National Guard one winter when there was an ice storm, she had the only pen that would write in the sub zero temps... It is an INK pen, not gel and it is a ball point pen, but it is hands down the greatest pen I have ever used.

**Q: The barrel of the pen is clear, but is the plastic tube the ink itself is in clear? Want to see how much ink is remaining and most are solid plastic.**
A: Of all these pens that I have used, the ink level is visible in all of the barrels. It is a dark ink line in the middle of the barrel. The ink line becomes shorter as the pen is used and disappears when ink is used up.

**Q: Do these pens have a 0.7 or 1.0 point? Thanks!**
A: 1.0mm point. It writes a real nice (perfect for me) width line. It doesn't run out wide like a felt tip pen does. The thick gel stays put and the pressurized tank writes upside down and on demand, 1st time, every time. Only negatives are the short ink life and the extra barrel width.

**Q: Can it write well on carbon copy like checkbooks or forms that need to press through?**
A: It will definitely perform well on checkbooks that have to be pressed through. I don't have any carbons, but I'm sure that will work as well. We have used these pens for at least 8 or 10 years. My wife is a cross word nut and says she needs to be able to write over her. I like the pens for everyday stuff. They are made in Japan by Mitsubishi according to the box. Hope this helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ My go to pen
*by C***A on 28 March 2018*

My favourite pen. Writes upside down, on wet paper and many other surfaces. Also a nice pen to write with, flows well.

### ⭐⭐⭐⭐⭐ Great pens.
*by R***W on 10 June 2025*

These are the only pens that will still work after sitting in my car for any length of time. Pressurised and they work.

### ⭐⭐⭐⭐⭐ Tremendous Value and Functionality
*by R***. on 10 May 2026*

For years, I used various pens with Fisher refills because I needed to write upside down at work. Then I discovered the Uniball Power Tank pen and never looked back. The Power Tank does some things even better than Fisher. Importantly, the ink flows smoother with less skipping. Like fisher, it can write upside down indefinitely. It writes on wet paper better than Fisher but not as well through oil. It has a super comfortable, rubberized grip area and the convenience of push-button operation. The black plastic material is sturdy but lighter in weight than many more expensive pens. A possible disadvantage is that unlike Fisher, it comes in only one style; if you don't like it, you're out of luck. The crowning glory is that you can buy a dozen of these Power Tank pens for about $18.00 here on Amazon. That's less than a single copy of most pens which use the Fisher refill.

## Frequently Bought Together

- uniball Power Tank Rt Ballpoint Pen, Retractable, Bold 1 Mm, Black Ink, Smoke/black Barrel, Dozen
- Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 5
- Uni-ball Power Tank Ballpoint Retractable & Fine Ballpoint Pen Rubber Grip Type-0.7mm-black Ink-value Set of 10

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.ar/products/268180816-powertank-rt-black-pens-12-pack-1-0mm-bold-ballpoint](https://www.desertcart.com.ar/products/268180816-powertank-rt-black-pens-12-pack-1-0mm-bold-ballpoint)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-09-21*