--- product_id: 456807657 title: "Acroball Knock Ballpoint Pen, 0.5mm Extra Fine, Black(BAB-15EF-BB), 6 pens per Pack (Japan Import) [Komainu-Dou Original Package]" brand: "pilot" price: "£31.46" currency: GBP in_stock: false reviews_count: 5 category: "Pilot" url: https://www.desertcart.co.uk/products/456807657-acroball-knock-ballpoint-pen-0-5mm-extra-fine-black-bab store_origin: GB region: United Kingdom --- # Smooth black ink for crisp writing 0.5mm extra fine tip for precision Click-off retractable design for convenience Acroball Knock Ballpoint Pen, 0.5mm Extra Fine, Black(BAB-15EF-BB), 6 pens per Pack (Japan Import) [Komainu-Dou Original Package] **Brand:** pilot **Price:** £31.46 **Availability:** ❌ Out of Stock ## Summary > 🖊️ Write sharp, write smart — the pen that means business. ## Quick Answers - **What is this?** Acroball Knock Ballpoint Pen, 0.5mm Extra Fine, Black(BAB-15EF-BB), 6 pens per Pack (Japan Import) [Komainu-Dou Original Package] by pilot - **How much does it cost?** £31.46 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/456807657-acroball-knock-ballpoint-pen-0-5mm-extra-fine-black-bab) ## Best For - pilot enthusiasts ## Why This Product - Trusted pilot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Smoothness:** Enjoy a silky ink flow that glides seamlessly, reducing hand fatigue during long work sessions. - • **Sleek Retractable Design:** Click-off cap ensures quick access and prevents ink drying, perfect for on-the-go professionals. - • **Trusted Japanese Quality:** Imported from Japan, this pen combines reliability with a premium feel that elevates your everyday writing. - • **Precision in Every Stroke:** Ultra-fine 0.5mm tip delivers sharp, legible writing that stands out in meetings and notes. - • **Pack of Six for Consistency:** Stay stocked with six pens, so you never run out during critical deadlines or brainstorming marathons. ## Overview The Pilot Acroball Knock Ballpoint Pen features a 0.5mm extra fine tip with smooth black ink, housed in a convenient retractable design. Sold in packs of six, this Japanese-imported pen offers precision, comfort, and reliability for professionals who demand clarity and style in their writing tools. ## Description Acroball Knock Ballpoint Pen, 0.5 mm Extra Fine, Black, 6 Pens per Pack . Review: Good pen. Comfortable to hold. Writes very legibly. Review: Smooth rolling pen- great for a child sitting exams who needs to be able to write clearly without smudging. We have tested many pens. This brand is a favourite for school. ## Features - Colour : Black - Ballpoint Pen 0.5 mm Extra Fine - 6 Pens per Pack ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00Z9CEVCC | | Best Sellers Rank | #54,212 in Office Products ( See Top 100 in Office Products ) #333 in Retractable Ballpoint Pens | | Brand | Pilot | | Closure | Click-Off Cap | | Colour | black | | Country of Origin | USA | | Customer Reviews | 4.5 4.5 out of 5 stars (267) | | Date First Available | 13 December 2016 | | Generic Name | extra fine | | Grip Type | Smooth | | Ink Colour | Black | | Item Dimensions LxWxH | 13.9 x 1.5 x 6.9 Centimeters | | Item Weight | 50 g | | Line Size | 0.5mm | | Manufacturer | 0 | | Manufacturer Part Number | BAB-15EF-BB | | Material | Plastic | | Model Number | SG_B00Z9CEVCC_US | | Net Quantity | 6.0 Count | | Pencil Lead Degree (Hardness) | HB | | Point Type | Extra Fine | ## Product Details - **Age Range (Description):** Adult - **Brand:** Pilot - **Colour:** black - **Ink Colour:** Black - **Writing instrument form:** Ballpoint Pen ## Images ![Acroball Knock Ballpoint Pen, 0.5mm Extra Fine, Black(BAB-15EF-BB), 6 pens per Pack (Japan Import) [Komainu-Dou Original Package] - Image 1](https://m.media-amazon.com/images/I/51KouBFuXsL.jpg) ![Acroball Knock Ballpoint Pen, 0.5mm Extra Fine, Black(BAB-15EF-BB), 6 pens per Pack (Japan Import) [Komainu-Dou Original Package] - Image 2](https://m.media-amazon.com/images/I/51ZGXjbbhhL.jpg) ![Acroball Knock Ballpoint Pen, 0.5mm Extra Fine, Black(BAB-15EF-BB), 6 pens per Pack (Japan Import) [Komainu-Dou Original Package] - Image 3](https://m.media-amazon.com/images/I/81TbZjegWfL.jpg) ![Acroball Knock Ballpoint Pen, 0.5mm Extra Fine, Black(BAB-15EF-BB), 6 pens per Pack (Japan Import) [Komainu-Dou Original Package] - Image 4](https://m.media-amazon.com/images/I/918IvipTvYL.jpg) ## Questions & Answers **Q: What does knock type mean?** A: It's the spring-loaded ballpoint ink delivering system inside the pen cartridge. See the definition here: https://www.google.com/patents/US6193429 **Q: Is this product refillable?** A: Yes they are refillable. Look for BRFV-10EF-B for 0.5 mm refills. **Q: Is this a gel ink or just regular pen?** A: I nither gel or regular ink, this pen use a hybrid oil based ink, they write very smooth, don't smear, and always write until you deplet the entire ink inside the barrel. You won't be disappointed. I am a nurse, and I don't like to use crapy pens. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***L on 14 December 2025* Good pen. Comfortable to hold. Writes very legibly. ### ⭐⭐⭐⭐⭐ Review *by M***5 on 25 June 2025* Smooth rolling pen- great for a child sitting exams who needs to be able to write clearly without smudging. We have tested many pens. This brand is a favourite for school. ### ⭐⭐⭐⭐⭐ Review *by D***H on 21 November 2023* I had bought these pens a few years ago at Walmart but they didn't seem to carry them any more and was thrilled when I saw them on Amazon. I ordered a packet which I had finished not long ago and so ordered another packet. They write so well and hardly ever smudge. They are a nice thin point and don't leak but they just make such a good job. Once you have tried them you will not want any other pen. --- ## 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.co.uk/products/456807657-acroball-knock-ballpoint-pen-0-5mm-extra-fine-black-bab](https://www.desertcart.co.uk/products/456807657-acroball-knock-ballpoint-pen-0-5mm-extra-fine-black-bab) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-15*