--- product_id: 30920212 title: "Uni Mechanical Pencil Kurutoga Pipe Slide Model 0.5mm, Black Body (M54521P.24)" brand: "uni" price: "325417₫" currency: VND in_stock: true reviews_count: 13 category: "Uni" url: https://www.desertcart.vn/products/30920212-uni-mechanical-pencil-kurutoga-pipe-slide-model-0-5mm-black store_origin: VN region: Vietnam --- # Lead auto-rotates for sharpness 0.5mm ultra-fine line precision Pipe slide protects lead from breakage Uni Mechanical Pencil Kurutoga Pipe Slide Model 0.5mm, Black Body (M54521P.24) **Brand:** uni **Price:** 325417₫ **Availability:** ✅ In Stock ## Summary > ✏️ Stay sharp, write smarter — never settle for dull lines again! ## Quick Answers - **What is this?** Uni Mechanical Pencil Kurutoga Pipe Slide Model 0.5mm, Black Body (M54521P.24) by uni - **How much does it cost?** 325417₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/30920212-uni-mechanical-pencil-kurutoga-pipe-slide-model-0-5mm-black) ## Best For - uni enthusiasts ## Why This Product - Trusted uni brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Precision:** Ultra-fine 0.5mm lead delivers clean, professional strokes ideal for detailed work. - • **Break-Resistant Writing:** Pipe slide system guards the lead, eliminating annoying breaks and smudges. - • **Lightweight & Ergonomic:** Sleek black body with contoured grip designed for all-day comfort and control. - • **Consistently Sharp Lines:** Innovative lead rotation keeps your tip perfectly pointed with every lift. - • **Trusted Japanese Craftsmanship:** Made in Japan with premium materials, ensuring durability and smooth performance. ## Overview The Uni Kurutoga Pipe Slide 0.5mm mechanical pencil features a patented lead rotation mechanism that keeps the tip consistently sharp by incrementally twisting the lead each time you lift the pencil. Its innovative pipe slide system protects the lead from breaking, ensuring clean, smudge-free writing. Lightweight with a contoured grip and crafted in Japan, this pencil delivers precision and durability for professionals and students alike. ## Description The Kurutoga Has A Core Rotation Mechanism That Continually Rotates The Pencil Lead As You Write. A Spring-Loaded Clutch Twists The Lead Incrementally Every Time You Lift The Pencil From The Paper. This Allows A Uniform Wearing Of The Lead So That It Always Remains Pointed. This Is Great For Students! It Gives You An Amazingly Thin Line. In Effect, You Use Only 50% Of The Lead Area That You Were Previously Using With Your Old Mechanical Pencil. In Addition, This New Kurutoga Is Equipped With A Pipe Slide System.The Lead Is Difficult To Break As You Write, Due To The Innovative Mechanism. When The Core Is Reduced, The Pipe Gets Shorter At The Same Time. The Guide Pipe Protects The Entire Length Of The Lead. Because There'S No Lead Breakage, Your Papers Remain Clean Without Smudges From Broken Lead Dust. Review: Excellent quality and performance - Excellent quality mechanical pencil. The lead turns incrementally every time you lift the pencil from the paper, and that is what keeps the tip of your pencil sharp. Review: Great product - Excellent mechanical pencils. Work as advertised ## Features - Lead Rotating Technology Mechanical Pen, Koru Toga - Country Of Origin : Japan - Package Weight : 1.0 Lbs - Package Quantity :1 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B017BDDZ7I | | Additional Features | Erasable, Retractable | | Age Range (Description) | Teens,Adult | | Age Range Description | Teens,Adult | | Best Sellers Rank | #15,364 in Office Products ( See Top 100 in Office Products ) #126 in Mechanical Pencils | | Body Shape | Round | | Brand | Uni | | Brand Name | Uni | | Closure Type | Retractable | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 6,024 Reviews | | Drill Point | Fine | | Global Trade Identification Number | 04902778199480 | | Grip Type | Contoured | | Hand Orientation | Ambidextrous | | Hardness | 2B | | Included Components | Lead | | Ink Base | Oil | | Ink Color | Black | | Item Diameter | 0.5 Millimeters | | Item Dimensions | 7.6 x 0.6 x 2 inches | | Item Weight | 10 Grams | | Line Size | 0.5 Millimeters | | Manufacturer | Uni | | Material | Plastic | | Material Type | Plastic | | Model Name | kurutoga | | Model Number | M54521P.24 | | Pattern | Single Item | | Recommended Uses For Product | Writing | | Style | 1 | | UPC | 796487250082 300718340178 | | Unit Count | 1.0 Count | | Writing Instrument Form | Graphite Pencil | ## Product Details - **Age Range (Description):** Teens,Adult - **Brand:** 三菱鉛筆 - **Color:** Black - **Ink Color:** Black - **Writing Instrument Form:** Graphite Pencil ## Images ![Uni Mechanical Pencil Kurutoga Pipe Slide Model 0.5mm, Black Body (M54521P.24) - Image 1](https://m.media-amazon.com/images/I/61h9r6XaRoL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: This pencil has the retractable tip** A: Yes it has the retractable tip. The entire silver metal tip will retract into the black plastic part of the pencil. When you push the top of the pencil it releases the mechanism in the pencil. While holding the top of the pencil down just take another finger (or thumb) and gently push the lead. The lead will go into the silver metal part. As you continue to gently push, the silver metal tip slides right into the black part. Just for the record, the only difference between the pencil you asked about and my pencil is the color. You are asking about the 'black' one (M54521P.24) and my 'blue' pencil's model number is (M54521P.33). From what I can tell, the only difference is the color. So yes it does retract. The first Uni pencil I bought was Uni-ball Kuru Toga Mechanical Pencil, 0.5 HB #2, 1 count. The model number for this one is 1751934. This pencil is black. Under 'Color': (it says) 0.5mm Starter Set It came in a little cardboard package which included the pencil, a package of 12 - #2 lead refills and a couple extra erasers. This pencil has the rotating lead mechanism that keeps the pencil sharpened and helps prevent breakage. I was real hesitant about buying it because I prefer the heavier metal mechanical pencils. When looking at this one, it seemed to be mostly plastic. I love a good mechanical pencil. I love to write and I love to draw! I can't stand a cheap mechanical pencil. It is like this...if it feels good in my hand, I feel I can write better/draw better. Maybe it is in my head, but I have to have a good pencil. I ordered a few pencils around the time I got this one. The other ones were the heavier metal ones I like so well. As it turned out, I used this one way more than I used the other more expensive ones. Don't get me wrong...I sure do like the other ones, but there is just something about this Uni pencil I just LOVE!!! So, after having this one for awhile, I decided to order the other one (the one you are asking about). They are two different pencils and I LOVE them both! One difference is, like I said, the pencil you asked about (M54521P.24) is retractable and this one I am telling you about now (the first one I bought...model number 1751934) is not as retractable. The lead of course is retractable. Like the one you asked about, you push the top down and you can push the lead inside the metal silver tip. But that is as far as it goes. The silver tip does NOT retract into the pencil. I love both of these pencils. Not knowing exactly what you are looking for in a pencil, I would say, what the heck...try both of them!!!!! They are different from each other and I use both of them regularly. Just my opinion though. Good luck with your decision. The other pencil I really like that I bought on Amazon is the Pentel 120 A3 DX 0.5mm - A315. This one again is mostly plastic with a metal tip. With this one, the lead will retract, but the silver metal part does not retract. The one I have is purple and it has a black rubber grippy thingy where you hold on the the pencil. I like the eraser better on the Pentel, although I usually use one of those stick erasers. Well, there you go. I hope this helps. I know you asked a 'yes' or 'no' question and I wrote you a book. LOL If I gave you too much information, please accept my apology. I hope I didn't get too excited when writing and this makes some sort of sense. LOL I just love these pencils and since I didn't know if you were looking for one that retracts or not, I wanted to tell you about the other one I had in case you liked that one better. Good luck and God bless you! ------------------- P.S. Just so there is no confusion, the answer to your question is a very simple 'yes'. :) :) :) :) :) **Q: can you refill this pencil with any brand .5mm lead?** A: Yes, any .5 mm lead will work just fine. There is a special "Kuru Toga" lead, but it's not necessary for the proper operation of the mechanism. **Q: The writing tip on the black pencil retreats into the pencil whereas the tip on the red pencil does not (it is fixed). Is this normal or is it broken?** A: Well, the illustration on the back of the package shows the movement of the metal sheath as part of the rotating mechanism, so if it will absolutely not move, even with the top of the pencil depressed, than it might be a defect. The actual movement of the tip when writing, however, should be fairly subtle. It could still be functional - if the logo in the clear window rotates, then whether it retracts or not is irrelevant to functionality. The rotating logo would be the definitive test; my guess is it's a defect, but I can't be 100%... **Q: Is the clear part a soft material or hard plastic? I have another kuru toga that has a very thin but soft rubber piece where the clear part is.** A: the clear part is hard plastic ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent quality and performance *by K***Y on March 24, 2026* Excellent quality mechanical pencil. The lead turns incrementally every time you lift the pencil from the paper, and that is what keeps the tip of your pencil sharp. ### ⭐⭐⭐⭐⭐ Great product *by J***H on May 3, 2026* Excellent mechanical pencils. Work as advertised ### ⭐⭐⭐⭐⭐ Kuru toga is always great *by T***F on March 7, 2026* There are lots of variations of the kuru toga pencil. It's one if the best and this style is nice and lightweight. The lead advance is less noticeable if you write in script (older folks like me), and more noticeable if you block print like kids do now. Great pencil tho, no matter how you write. ## Frequently Bought Together - Uni Mechanical Pencil Kurutoga Pipe Slide Model 0.5mm, Black Body (M54521P.24) - Uni Pencil Lead, The Uni" Smudge-Proof Leads, 0.5mm HB, 40 Leads x 5 Pack --- ## 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.vn/products/30920212-uni-mechanical-pencil-kurutoga-pipe-slide-model-0-5mm-black](https://www.desertcart.vn/products/30920212-uni-mechanical-pencil-kurutoga-pipe-slide-model-0-5mm-black) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-03*