--- product_id: 621370568 title: "Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue)" brand: "aiyiben" price: "€ 42.61" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.be/products/621370568-rollerball-refill-4-37-inches-roller-ball-fine-point-0 store_origin: BE region: Belgium --- # 4.37 inch precision length 0.5 mm fine rollerball tip German-engineered smooth ink flow Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue) **Brand:** aiyiben **Price:** € 42.61 **Availability:** ✅ In Stock ## Summary > 🖋️ Upgrade your pen game with precision and style—never run out of ink again! ## Quick Answers - **What is this?** Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue) by aiyiben - **How much does it cost?** € 42.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/621370568-rollerball-refill-4-37-inches-roller-ball-fine-point-0) ## Best For - aiyiben enthusiasts ## Why This Product - Trusted aiyiben brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek Metal Build:** Durable yet lightweight metal casing ensures smooth handling and premium feel. - • **Value Pack for Sharing:** Six refills per pack—perfect for stocking your desk or gifting to your productivity squad. - • **Long-Lasting Ink Supply:** Each refill delivers consistent, quick-drying German gel ink that won’t smudge or seep. - • **Universal Compatibility:** Fits a wide range of ballpoint pens, extending the life of your favorite luxury pens. - • **Effortless Precision Writing:** Experience flawless 0.5 mm fine point for crisp, professional notes. ## Overview This pack of six 4.37-inch rollerball refills features a 0.5 mm fine point and premium German gel ink for smooth, quick-drying writing. Crafted with a sleek metal body, these refills fit many ballpoint pens, making them an ideal, cost-effective way to extend the life of your favorite writing instruments in professional and academic settings. ## Description Good metal refills: The high-quality ink ensures even writing smoothness, the ink dries quickly with a constant ink flow and does not seep out. It is suitable for many ballpoint pen refills. Applications: Refills are suitable for offices, businesses, schools, apartments and hotels. Lightweight and portable, easy to carry. EXPENSION OF EXPENSIVE PENS If your expensive pen ink is used up and does not need to be thrown away, this is a good choice. The package contains 6 refills that you can use. Specification: Quantity: 6 packs Colour: black ink. Material: metal body. Midpoint: 0.5 mm. Length: 4.37 inches / 11.1 cm. Diameter: 0.236 inches / 0.6 cm. Package includes: 6 x ballpoint pen refills. ## Features - Size: the length of the refill is approx. 11.1 cm. The diameter of the ink reservoir is 0.6 cm (0.23 inches) - the centre of 0.5 mm German gel ink. - Quantity:6 pen overhauls, enough to share with your friends. - Quality: metal material, light and smooth; The ink dries quickly, the ink flow is constant and does not seep out. - SUITABLE FOR LOCATION Metal ballpoint pens are suitable for office, shop, school and home. - Scope of Application Many interchangeable ballpoint pens are compatible and can extend the life of your favorite expensive pen. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08DRSB1ST | | Best Sellers Rank | #122,860 in Office Products (See Top 100 in Office Products) #20,727 in Pens & Refills | | Brand Name | AIYIBEN | | Customer Reviews | 4.1 4.1 out of 5 stars (1,081) 4.1 out of 5 stars | | Ink Colour | Blue | | Item Dimensions | 11.1 x 0.6 x 0.6 Centimeters | | Item Weight | 34 Grams | | Manufacturer | AIYIBEN | | Manufacturer Part Number | Ink Pen Refills 437 | | Model Number | Ink Pen Refills 437 | | Number Of Pieces | 6 | | Point Type | Medium | | Style Name | Ballpoint pen | | Unit Count | 6 Count | ## Product Details - **Brand:** AIYIBEN - **Style:** Ballpoint pen - **Item dimensions L x W x H:** 11.1 x 0.6 x 0.6 Centimeters - **Point Type:** Medium - **Item Weight:** 34 Grams ## Images ![Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue) - Image 1](https://m.media-amazon.com/images/I/51LRJTcpXQL.jpg) ![Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue) - Image 2](https://m.media-amazon.com/images/I/41fnuEtueUL.jpg) ![Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue) - Image 3](https://m.media-amazon.com/images/I/31i6zegDViL.jpg) ![Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue) - Image 4](https://m.media-amazon.com/images/I/51PK0jgyptL.jpg) ![Rollerball Refill 4.37 Inches, Roller Ball Fine Point 0.5 mm, German Ink Refill Pack with Interchangeable Ballpoint Pen Refills Medium Point (Pack of 6) (Blue) - Image 5](https://m.media-amazon.com/images/I/51TYa8C26RL.jpg) ## Available Options This product comes in different **Colour** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good replacement for Itoya NPR-5 refill *by on Reviewed in the United States 29 May 2026* I can’t comment on how long the ink lasts, but this refill fits in my pen that originally used a Itoya NPR-5 rollerball refill. This generic refill produces a nice thin black line with roughly the same ink flow as the original refill.The price is right. If the ink fails too quickly, I will update, but I’m pleased with my purchase. ### ⭐⭐⭐⭐⭐ Perfetti *by on Reviewed in Italy 19 December 2025* Funzionano perfettamente ### ⭐⭐⭐⭐⭐ Sem problemas *by on Reviewed in Brazil 23 May 2023* Estou usando sem nenhum problema. ## Frequently Bought Together - 4.37 inch Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, Blue Ink Refill Pack of Replaceable Pen Refills Medium Point (6 Pack) - Pemmeed Rollerball Pen Refills Smooth Writing German Gel Ink,Parker Waterman Compatible Pen Refills Metal Standard Size Fine Point Black Ink Pack of 10 (Black) --- ## 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.be/products/621370568-rollerball-refill-4-37-inches-roller-ball-fine-point-0](https://www.desertcart.be/products/621370568-rollerball-refill-4-37-inches-roller-ball-fine-point-0) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-09-16*