---
product_id: 2664595
title: "uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Blue, 12 Pack"
brand: "uni-ball"
price: "S/.131"
currency: PEN
in_stock: true
reviews_count: 10
category: "Uni Ball"
url: https://www.desertcart.pe/products/2664595-uniball-power-tank-rt-ballpoint-pens-medium-point-1-0mm
store_origin: PE
region: Peru
---

# Water- and fade-resistant uni Super Ink Writes smoothly down to -20°C 1.0mm bold point for standout writing uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Blue, 12 Pack

**Brand:** uni-ball
**Price:** S/.131
**Availability:** ✅ In Stock

## Summary

> 🖋️ Power through every note, rain or shine—because your ideas deserve unstoppable ink.

## Quick Answers

- **What is this?** uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Blue, 12 Pack by uni-ball
- **How much does it cost?** S/.131 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/2664595-uniball-power-tank-rt-ballpoint-pens-medium-point-1-0mm)

## 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

- • **Bold & Reliable Lines:** 1.0mm medium point delivers thick, vivid blue lines that make your ideas impossible to ignore.
- • **Ergonomic Comfort Grip:** Textured rubber grip designed for long meetings and marathon note-taking without hand fatigue.
- • **All-Terrain Writing Power:** Writes flawlessly on wet paper, upside-down, and even in zero gravity—your pen for every environment.
- • **Pressure-Defying Ink Flow:** Pressurized cartridge ensures smooth, skip-free writing at any angle or altitude—jet-setter approved.
- • **Archival-Grade Ink Security:** Pigment-based uni Super Ink resists water, fading, and fraud, preserving your most important documents.

## Overview

The uni-ball Power Tank RT is a rugged, retractable ballpoint pen featuring a 1.0mm medium point and pressurized ink cartridge that writes smoothly in extreme conditions—including wet surfaces, cold temperatures down to -20°C, and zero gravity. Equipped with water- and fade-resistant uni Super Ink, it ensures long-lasting, fraud-resistant documents. Its textured rubber grip offers ergonomic comfort, making it the ultimate pen for professionals who demand reliability and bold, consistent lines in any environment.

## Description

As its name implies, the uni-ball Power Tank RT ball point pen is equipped to perform in extreme conditions. With incredibly fast, free-flowing ink, and rugged design, these all-terrain retractable pens deliver smooth, clean writing even on wet surfaces and in cold temperatures. These click pens come with a textured grip that provides comfort and control in the face of punishing weather. The Power Tank RT also features exclusive uni Super Ink, a pigment-based ink that forms an indelible bond with paper to protect against water, fading, and fraud. These versatile, blue pens have a convenient retractable design.

Review: I'm happy to share some good information on these pens - I think this is a good pen! Uni Ball has been bought out a few times . . . They are now found under Sandford. Sanford is now owned by Newell below. Use the online form ([...]) or call us at 1.800.323.0749 Send letters to: NEWELL RUBBERMAID OFFICE PRODUCTS Attn: Consumer Affairs2707 Butterfield RoadOak Brook, IL 60523 Sanford/Newell is missing out on potential customers. They don't have a good catalog system to find their stuff. I think of all the fire departments, police departments and other outdoor potential users that are not aware of these pens. _____________________________________________________________________________________ KEY FEATURES: Writes on wet paper. Writes upside-down. Writes in temperatures down to -20 °C (-4 degree F). Writes in zero-gravity. Won’t leak in flight. Jet setters get it—these pens are designed to compensate for changes in cabin pressure. Roller delivers consistent, free-flowing writing. It has the feeling of a fountain pen, without the mess. POINT SIZE Pens with 1.0 mm points produce thick, bold lines that make big statements in letters and journals. Quick-drying Ink – Great for fast writers and innovative lefties. Gel ink is vibrant—that means rich, black ink and vivid colors. The writing pace is fast, but exceptionally controlled. Acid-free Ink – Perfect for archival uses, these help words remain bold over time. Pigment-based uni Super Ink contains particles that form an indelible bond in paper. Fade- and Water-resistant Pressurized ink tube allows it to write smoothly in extreme conditions. Features Uni-Super Ink that helps prevent against check and document fraud. Textured rubber comfort-grip provides extra comfort and control. Semi-transparent barrel lets you monitor the ink supply (Level remaining). Comfort Grip – Ergonomic designs and unique grips keep hands free of pressure. ____________________________________________________________________________________ You won’t find these in stores and they are reluctant to order them: You can try looking for them under Sanford. . . The blue pen is numbered 42071 (SANFORD USES A DIFFERENT #) The black pen is numbered 42070 (SANFORD USES A DIFFERENT #) “Sanford” black ballpoint Power Tank RT 1.0 mm refill is 42082 PP “Sanford” blue ballpoint Power Tank RT 1.0 mm refill is 42083 PP ____________________________________________________________________________________ consumer.service@sanfordcorp.com Hello Mr. Ver Haagh 24 Feb 2014 Thank you for reaching out to us about our uni-ball Power Tank RT and we apologize for any inconvenience you have experienced locating this item. Many of our products are available through local stationer and/or office supply stores; unfortunately, Newell Rubbermaid Office Products does not sell direct to individual consumers. If you are unsuccessful through your local retailers, the uni-ball Power Tank RT should be available from Office Depot BSD at (800) 463-3768, EC Office Products (800) 765-4031 as well as desertcart.com. Additionally, Newell Rubbermaid Office Products and Paper Mate items can be ordered from Gray Enterprises (800) 970-7367 ([...]) or [...] if you prefer to order by the dozen. Because we sell to various distributors, we are not always able to list your exact local retailers. Thank you for taking the time to e-mail us and for your support of Newell Rubbermaid Office Products. Brad Kelly Newell Rubbermaid Office Products 001639885A ____________________________________________________________________________________
Review: Best pen ever - These pens write without skipping, w smooth flow, in any orientation, from first touch on paper to last, and it's permanent ink, soon as it dries. This would be the cartridge in high end pens if the high end pens had better cartridges. You can see the ink level, and it works right to the end. These never blow up in pocket, regardless being on a plane or pocket or Arizona summer heat in a car. The unretractable ones were better for in pocket use, as the nib was retracted, and the retractable ones will sometimes self extend in pocket, so not as safe in pocket due to pointy end, but they haven't been avail for a while. The 1.0mm is great for writing, the .7mm is great for fine drawing, etc. Only pens I will buy and have been buying for over 10 years, and I make my living by the notes I take. The only pens you will ever buy again once you try them. They don't look like a million bux, but you can make a million bux w them, without losing that comma that other pens sometimes don't quite write right. Right? Right.

## Features

- Ballpoint Pen: Chronicle your adventures with our rugged, ready-for-anything blue pens; A pressurized ball point ink pen tank delivers clean writing in the most extreme conditions
- uni Super Ink: Water- and fade-resistant ink helps you compose long-lasting, high-quality documents you can archive; Our ink pens offer protection against water, fading, and fraud
- Pressurized Ink Cartridge: Our blue pen works at odd angles and in cold weather or wet conditions
- Quality Construction: Our writing pens feature a textured rubber grip and a medium tip that delivers outstanding readability; A convenient clip ensures that your favorite ink pen is always at hand
- Superior Performance: Our innovative color blue pens are the best rugged writing tools for the jobsite - whether at your desk or out in the elements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002HJDFRM |
| Best Sellers Rank | #9,109 in Office Products ( See Top 100 in Office Products ) #243 in Ballpoint Pens |
| Brand | Uni-Ball |
| Closure | Retractable |
| Color | Blue |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,189) |
| Date First Available | January 14, 2006 |
| Grip Type | Ribbed |
| Ink Color | Blue |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.84 ounces |
| Item model number | 42071 |
| Line Size | 1.0 mm |
| Manufacturer | Uni-Ball |
| Manufacturer Part Number | 42071 |
| Material Type | Plastic |
| Number of Items | 12 |
| Pencil Lead Degree (Hardness) | HB |
| Point Type | Bold |
| Product Dimensions | 0.63 x 5.63 x 0.5 inches |
| Shape | Round |
| Size | 1 Count (Pack of 12) |

## Product Details

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

## Images

![uniball Power Tank RT Ballpoint Pens, Medium Point (1.0mm), Blue, 12 Pack - Image 1](https://m.media-amazon.com/images/I/81AkwzlsgkL.jpg)

## Available Options

This product comes in different **Color** options.

## 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

### ⭐⭐⭐⭐⭐ I'm happy to share some good information on these pens
*by A***R on March 9, 2014*

I think this is a good pen! Uni Ball has been bought out a few times . . . They are now found under Sandford. Sanford is now owned by Newell below. Use the online form ([...]) or call us at 1.800.323.0749 Send letters to: NEWELL RUBBERMAID OFFICE PRODUCTS Attn: Consumer Affairs2707 Butterfield RoadOak Brook, IL 60523 Sanford/Newell is missing out on potential customers. They don't have a good catalog system to find their stuff. I think of all the fire departments, police departments and other outdoor potential users that are not aware of these pens. _____________________________________________________________________________________ KEY FEATURES: Writes on wet paper. Writes upside-down. Writes in temperatures down to -20 °C (-4 degree F). Writes in zero-gravity. Won’t leak in flight. Jet setters get it—these pens are designed to compensate for changes in cabin pressure. Roller delivers consistent, free-flowing writing. It has the feeling of a fountain pen, without the mess. POINT SIZE Pens with 1.0 mm points produce thick, bold lines that make big statements in letters and journals. Quick-drying Ink – Great for fast writers and innovative lefties. Gel ink is vibrant—that means rich, black ink and vivid colors. The writing pace is fast, but exceptionally controlled. Acid-free Ink – Perfect for archival uses, these help words remain bold over time. Pigment-based uni Super Ink contains particles that form an indelible bond in paper. Fade- and Water-resistant Pressurized ink tube allows it to write smoothly in extreme conditions. Features Uni-Super Ink that helps prevent against check and document fraud. Textured rubber comfort-grip provides extra comfort and control. Semi-transparent barrel lets you monitor the ink supply (Level remaining). Comfort Grip – Ergonomic designs and unique grips keep hands free of pressure. ____________________________________________________________________________________ You won’t find these in stores and they are reluctant to order them: You can try looking for them under Sanford. . . The blue pen is numbered 42071 (SANFORD USES A DIFFERENT #) The black pen is numbered 42070 (SANFORD USES A DIFFERENT #) “Sanford” black ballpoint Power Tank RT 1.0 mm refill is 42082 PP “Sanford” blue ballpoint Power Tank RT 1.0 mm refill is 42083 PP ____________________________________________________________________________________ consumer.service@sanfordcorp.com Hello Mr. Ver Haagh 24 Feb 2014 Thank you for reaching out to us about our uni-ball Power Tank RT and we apologize for any inconvenience you have experienced locating this item. Many of our products are available through local stationer and/or office supply stores; unfortunately, Newell Rubbermaid Office Products does not sell direct to individual consumers. If you are unsuccessful through your local retailers, the uni-ball Power Tank RT should be available from Office Depot BSD at (800) 463-3768, EC Office Products (800) 765-4031 as well as amazon.com. Additionally, Newell Rubbermaid Office Products and Paper Mate items can be ordered from Gray Enterprises (800) 970-7367 ([...]) or [...] if you prefer to order by the dozen. Because we sell to various distributors, we are not always able to list your exact local retailers. Thank you for taking the time to e-mail us and for your support of Newell Rubbermaid Office Products. Brad Kelly Newell Rubbermaid Office Products 001639885A ____________________________________________________________________________________

### ⭐⭐⭐⭐⭐ Best pen ever
*by Y***M on September 23, 2022*

These pens write without skipping, w smooth flow, in any orientation, from first touch on paper to last, and it's permanent ink, soon as it dries. This would be the cartridge in high end pens if the high end pens had better cartridges. You can see the ink level, and it works right to the end. These never blow up in pocket, regardless being on a plane or pocket or Arizona summer heat in a car. The unretractable ones were better for in pocket use, as the nib was retracted, and the retractable ones will sometimes self extend in pocket, so not as safe in pocket due to pointy end, but they haven't been avail for a while. The 1.0mm is great for writing, the .7mm is great for fine drawing, etc. Only pens I will buy and have been buying for over 10 years, and I make my living by the notes I take. The only pens you will ever buy again once you try them. They don't look like a million bux, but you can make a million bux w them, without losing that comma that other pens sometimes don't quite write right. Right? Right.

### ⭐⭐⭐⭐⭐ Great pens.
*by W***I on October 2, 2025*

The only pens I’ll use are Uniball. My fav the gel 207 impact is phenomenal, but this time around I decided to try a ball point. First thing I noticed was these aren’t as wide and bold as the 207 impact. They call it 1.0mm, but side by side you can clearly see this line isn’t as wide. I’d call it .7mm. What I do love is they are SMOOTH. They also will write on nearly anything and no smudges. The one thing I don’t like about gel. This ink dries as soon as you lay it down. The grip and feel is exactly what you’d expect from uniball. I’m also a fan of click on and off which these are vs pens with caps.

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-03-20*