--- product_id: 179373944 title: "M2 Ink Cartridges" brand: "erofa" price: "$20.77" currency: USD in_stock: true reviews_count: 13 category: "Erofa" url: https://www.desertcart.us/products/179373944-m2-ink-cartridges store_origin: US region: United States of America --- # quick-dry ink formula 30-pack bulk value 3.4mm bore diameter precision M2 Ink Cartridges **Brand:** erofa **Price:** $20.77 **Availability:** ✅ In Stock ## Summary > 🖋️ Elevate your pen game—write boldly, dry swiftly, and never run out! ## Quick Answers - **What is this?** M2 Ink Cartridges by erofa - **How much does it cost?** $20.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/179373944-m2-ink-cartridges) ## Best For - erofa enthusiasts ## Why This Product - Trusted erofa brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Ink Powerhouse:** 30 cartridges per pack to keep your creativity flowing without interruption. - • **Pure & Safe Formula:** Neutral pH, non-toxic natural dyes for worry-free, vibrant black writing. - • **Smudge-Free Mastery:** Quick-drying ink locks your ideas in place within seconds—no more messy smears. - • **Precision Fit Guaranteed:** 3.4mm bore diameter ensures seamless compatibility with Hongdian and similar fountain pens. - • **Effortless Flow Experience:** Consistent ink flow for smooth, elegant strokes that elevate your professional notes. ## Overview The Hongdian Fountain Pen Ink Cartridges Black Color Set offers 30 high-quality, 3.4mm bore diameter cartridges compatible with Hongdian and similar fountain pens. Featuring a quick-dry, non-toxic, neutral pH ink made from natural dyes, these cartridges deliver smooth, smudge-free writing with consistent ink flow. Perfect for professionals who demand reliability and elegance in every stroke. ## Description These cartridges compatible with fountain pen takes 3.4mm cartridges such as Hongdian matte black forest fountain pen How to fill a fountain pen with cartridges: Insert the narrow end of the new cartridge into the black of section block with enough pressure to create a snug fit. The pin inside the section block will puncture the seal of the cartridges, allowing ink to flow into the section block. Screw the barrel on over the cartridge into the section block. Notice: It can take a while for the ink to fully saturate the pen, so don’t worry if it doesn’t start writing right away. You can swing the pen to make a few drops of ink coming out of the nib, so that it can flow easily. When you fill the pen at the first time, you can swing the pen to make a few drops of ink coming out of the nib, so that it can flow easily. Review: Works perfectly with pen from same brand - I recently bought a (very good) pen from this brand so also ordered these ink cartridges. They are well priced and come in three separate boxes which is ideal. They are easy to insert, just give the pen a gentle shake over scrap paper to get the ink flowing. Perfect fit! The ink quality is good, and a true deep black. In my pen it flows smoothly, and writes really well. I'm pleased! Thanks for reading, I hope you find this review useful. Review: Perfect - Perfect - husband delighted with his present. ## Features - [ LARGER PACK ]: 30 pack of 3.4 mm bore diameter black ink cartridges ( compatible with fountain pens take 3.4mm cartridges such as hongdian) - [ DIMENSION ]: Length Appr 51mm; Cartridge Diameter Appr 4-7mm; bore diameter 3.4mm - [ NEUTRAL PH & NON-TOXIC ]: The ink has been carefully manufactured using only natural dyes giving the composition a neutral, natural, and non-toxic PH. - [ QUICK TO DRY ]: HongDian Designs ink takes only a few seconds to dry ensuring your important writing moments are not ruined by smudges or smears. - [ EASY TO WRITE ]: With no break in ink flow, enjoy a smooth and optimal writing experience as your fountain pen glides elegantly across paper. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083RFB2M8 | | Best Sellers Rank | 9,662 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 81 in Pen Refills | | Brand | erofa | | Brand Name | erofa | | Country Of Origin | China | | Customer Reviews | 4.5 out of 5 stars 1,678 Reviews | | Ink Colour | Black | | Item Weight | 60 Grams | | Item weight | 60 Grams | | Manufacturer | Hongdian | | Manufacturer Part Number | HDBIC30SETE | | Model Number | HDBLAINK30ED | | Number of Pieces | 30 | | Number of pieces | 30 | | Point Type | Bold | | Point type | Bold | | Product Warranty | 3 Months | | Style | Fountain | | Unit Count | 30 count | | Unit count | 30 count | ## Product Details - **Brand:** erofa - **Item weight:** 60 Grams - **Number of pieces:** 30 - **Point type:** Bold - **Style:** Fountain ## Images ![M2 Ink Cartridges - Image 1](https://m.media-amazon.com/images/I/61FrR02tlfL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: can't seem to fit in the place it should go, it's too wide, what should i do?** A: The bore diameter for these cartridges are 3.4 mm. Please confirm your pen take 3.4 mm cartridges. **Q: Is this ink waterproof?** A: No. Definitely not. **Q: Are those erasable ?** A: Like any other water-based ink, they aren't readily erasable **Q: Are these suitable for a parker pen?** A: No, they don't fit standard pens because the shaft before the ink is too long ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works perfectly with pen from same brand *by S***T on 17 February 2025* I recently bought a (very good) pen from this brand so also ordered these ink cartridges. They are well priced and come in three separate boxes which is ideal. They are easy to insert, just give the pen a gentle shake over scrap paper to get the ink flowing. Perfect fit! The ink quality is good, and a true deep black. In my pen it flows smoothly, and writes really well. I'm pleased! Thanks for reading, I hope you find this review useful. ### ⭐⭐⭐⭐⭐ Perfect *by F***A on 31 December 2025* Perfect - husband delighted with his present. ### ⭐⭐⭐⭐ Probably great, but doesn't fit my Parker pen *by A***A on 8 February 2024* Unfortunately, this doesn't fit my Parker fountain pen. Probably my fault, I presumed it would be compatible. They came well packaged and the product looks good. Just gotta work out what to do with 30 cartridges ! ## Frequently Bought Together - Hongdian Fountain Pen Ink Cartridges Black Color Set, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter - Matte Black Forest Fountain Pen Extra Fine Nib Classic Design with Converter and Metal Box Set by Hongdian --- ## 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.us/products/179373944-m2-ink-cartridges](https://www.desertcart.us/products/179373944-m2-ink-cartridges) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-10*