--- product_id: 766332397 title: "uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071)" brand: "uni-ball" price: "54073CFA" currency: XOF in_stock: true reviews_count: 5 category: "Uni Ball" url: https://www.desertcart.sn/products/766332397-uni-ball-power-tank-rt-ballpoint-retractable-pen-blue-ink store_origin: SN region: Senegal --- # Zero-gravity ink flow Operates to -20°C Writes upside-down uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071) **Brand:** uni-ball **Price:** 54073CFA **Availability:** ✅ In Stock ## Summary > 🖋️ Write Boldly, Anywhere, Anytime — Because Your Ideas Deserve No Limits ## Quick Answers - **What is this?** uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071) by uni-ball - **How much does it cost?** 54073CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/766332397-uni-ball-power-tank-rt-ballpoint-retractable-pen-blue-ink) ## 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 Blue Impact:** Make your mark with vibrant blue bold ink that stands out in every meeting and memo. - • **Zero-Gravity Proof:** Engineered to write in zero-gravity, perfect for professionals who demand reliability anywhere. - • **Unstoppable Ink Flow:** Pressurized ink technology ensures smooth writing in any orientation or environment. - • **Extreme Weather Ready:** Performs flawlessly in freezing temperatures down to -20°C—no excuses for missed notes. - • **Fraud-Resistant Uni-Super Ink:** Protect your documents with ink designed to prevent check and document fraud. ## Overview The uni-ball Power Tank RT is a pressurized ballpoint pen with bold blue ink that writes smoothly upside-down, in extreme cold down to -20°C, and even in zero-gravity. Featuring Uni-Super Ink, it offers enhanced security against document fraud, making it the ultimate reliable writing instrument for professionals on the go. ## Description Writes upside-down, in temperatures down to -20 C and even in zero-gravity. Pressurized ink writes smoothly. Review: I purchased these as they're able to write on wet paper and upside down. I have this with my field notes that uses waterproof paper as I find myself needing to jot down notes in all weather conditions, including in the rain. There are other pens on the market that offer the same features, but the uni-ball power tank is cheaper and, to be honest, much nicer to write with. I recommend this pen. Review: Scrivono sempre e in ogni condizione. E' il secondo pacco che compro non è mai capitato che perdano inchiostro. Le uso soprattutto per scrivere le parole crociate a letto quindi scrivono anche rivolte verso l'alto. ## Features - Pressurized ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | uni-ball | | Model Number | 42071 | | Color | blue | | Material Type | Plastic | | Number of Items | 1 | | Point Type | Bold | | Ink Color | Blue | | Product Dimensions | 1.6 x 14.3 x 1.27 cm; 108.86 g | | Shredded Shape | Pressurized | ## Product Details - **Age Range (Description):** Adult - **Brand:** Uni-Ball - **Color:** blue - **Ink Color:** Blue - **Material:** Plastic ## Images ![uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071) - Image 1](https://m.media-amazon.com/images/I/81AkwzlsgkL.jpg) ![uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071) - Image 2](https://m.media-amazon.com/images/I/611M6V4DFrL.jpg) ![uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071) - Image 3](https://m.media-amazon.com/images/I/61IgPJu9qRL.jpg) ![uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071) - Image 4](https://m.media-amazon.com/images/I/810N6TlmGpL.jpg) ![uni-ball Power Tank RT Ballpoint Retractable Pen, Blue Ink, Bold, Dozen (42071) - Image 5](https://m.media-amazon.com/images/I/710do0qRCTL.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 ### ⭐⭐⭐⭐⭐ Review *by K***Y on October 21, 2023* I purchased these as they're able to write on wet paper and upside down. I have this with my field notes that uses waterproof paper as I find myself needing to jot down notes in all weather conditions, including in the rain. There are other pens on the market that offer the same features, but the uni-ball power tank is cheaper and, to be honest, much nicer to write with. I recommend this pen. ### ⭐⭐⭐⭐⭐ Review *by M***O on November 30, 2017* Scrivono sempre e in ogni condizione. E' il secondo pacco che compro non è mai capitato che perdano inchiostro. Le uso soprattutto per scrivere le parole crociate a letto quindi scrivono anche rivolte verso l'alto. ### ⭐⭐⭐⭐⭐ Review *by K***L on January 23, 2023* Dobra jakość ## Frequently Bought Together - uniball Power Tank Rt Ballpoint Pen, Retractable, Bold 1 Mm, Blue Ink, Translucent Blue Barrel, Dozen - Sharpie Permanent Markers Set Quick Drying And Fade Resistant Fine Point Marker For Wood Plastic Paper Metal And More Drawing Coloring And Poster Marker Black 12 Count - BIC Glide Blue Retractable Ballpoint Pens, Medium Point (1.0mm), 12-Count Pack, Ultra Smooth Writing Blue Pens --- ## 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.sn/products/766332397-uni-ball-power-tank-rt-ballpoint-retractable-pen-blue-ink](https://www.desertcart.sn/products/766332397-uni-ball-power-tank-rt-ballpoint-retractable-pen-blue-ink) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-05-31*