Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Pen Ink, Refills & Cartridges |
| Origin | - |
| Brand | HERO |
| Ink Type | Thermally Erasable |
| Available Colors | Blue, Black, Blue-Black |
| Compatible Nib Sizes | 3.4mm and 2.6mm |
| Package Type | Bulk Pack |
| Target Audience | Students (Grade 3+) |
| Erasure Method | Heat Friction (Pen Eraser) |
| Cartridge Material | Plastic |
| Origin | Official Flagship Store |
| Usage | Handwriting Practice & Daily Writing |
Anonymous
Mar 29, 2026
Rating: 3/5
Works but fades in heat
The erasing function is cool, but be careful leaving your notebook in a hot car. I noticed some writing faded slightly. Otherwise, it's good for school use where temperatures are controlled.
Anonymous
Mar 22, 2026
Rating: 5/5
Exactly as described
Fast shipping from the flagship store. The cartridges fit both my 3.4mm and 2.6mm nib pens without leaking. The blue-black color is sophisticated and unique.
Anonymous
Mar 18, 2026
Rating: 5/5
Perfect for my third grader!
These cartridges are a lifesaver for handwriting practice. My daughter makes mistakes often, and being able to erase them cleanly without tearing the paper is amazing. The blue ink is vibrant and easy to read.
Anonymous
Mar 14, 2026
Rating: 4/5
Great for learning
My son loves that he can fix his letters instantly. It has boosted his confidence in writing. Only giving 4 stars because I wish the pack came with more blue-black options.
Anonymous
Mar 06, 2026
Rating: 4/5
Good value bulk pack
Bought these for our homeschool co-op. The bulk pack lasts a long time. The erasing works well, though you have to rub firmly. Fits our HERO pens perfectly.
Anonymous
Mar 05, 2026
Rating: 5/5
Smooth writing experience
I was worried erasable ink would feel scratchy, but this flows very smoothly. The black color is deep and professional looking. Great for drafting notes before finalizing them.
Q: What grade levels are these best suited for?
A: While suitable for all ages, they are specifically marketed for Grade 3 and up to assist children who are still mastering handwriting and need to correct mistakes frequently.
Q: Can I buy just the blue-black color separately?
A: This specific listing is a bulk mix pack. Please check our store catalog for single-color refill packs which may be available individually.
Q: Is the ink waterproof before erasing?
A: No, like most erasable inks, it is not waterproof. We recommend allowing the ink to dry completely before handling to prevent smudging.
Q: Do these cartridges work with non-HERO fountain pens?
A: These are designed specifically for HERO fountain pens with 3.4mm and 2.6mm nib interfaces. Compatibility with other brands is not guaranteed due to varying cartridge dimensions.
Q: How exactly do you erase the ink?
A: The ink is thermally erasable. You simply use the friction eraser on the end of a compatible HERO pen or apply gentle heat to the written area to make the ink disappear.
Monet Detail Watercolor Brush Set - Goat Hair Liner, Round Wolf Hair, Flat Oil Painting and Gouache Brushes
$76.00
365-Day Electric Guitarist Development Plan Beginner Introductory Electric Guitar Textbook Self-Study Tutorial Basic Skills Practice
$28.90
Over-Toilet Storage Rack for Bathroom - Multi-Functional No-Drill Organizer
$14.70
Wuxi 3D Five-Axis CNC High-Pressure Waterjet Cutting Machine for Metal, Glass, and Stone Inlay Patterns
$431,980.00
Zodiac Dragon & Snake Rattle Toy for Babies, Sheepskin Drum Head, Solid Wood, Non-Toxic, Chewable, Sensory Grasping Toy for 6+ Months
$14.80
Menghu Custom Plush Squeaky Keychain with Custom Voice - DIY Anime Comic Fabric Mini Pillow Charm
$12.80
Hell Jazz Drumming: Ultimate Drum Skill Training Institute - Complete Rock Drum Kit Manual and Tutorial for Drummers
$58.00
Custom Calligraphy Felt Mat for Chinese Painting and Brush Writing – Wool Felt Desk Pad or Wall Mat for Four Treasures of the Study
$9,022.00
Mini Watercolor Paint Notebook – Compact, Portable, Thickened Sketchbook for Markers, Ideal for Students and Casual Drawing
$7.58
Manufacturer Sales 35-Piece Automotive Repair Tool Set, 1/2" Pneumatic Socket Set, Extended Impact Sockets
$165.00
Portable Invisible Aligner Case for Invisalign and Children's Orthodontic Retainers
$12.50
Paper Blending Stumps Set for Art Highlighting and Sketching, Professional Smudging Tools for Fine Arts Students
$2.65
Sketch Blending Stump and Knife Set - Art Supplies Including Paper Stumps, Makeup Sponges, Highlight Detail Tools, Charcoal Wipers, and Scraper Kit
$4.08
New Children's Potty Training Seat for Boys and Girls
$28.00
FRP Spray Purification Tower for Thermal Power Plant Exhaust Gas Treatment - Desulfurization, Denitrification, Acid Mist Scrubber, FRP Chimney
$680.00
Handmade Natural Gourd Cute Smiley Face Rattle Baby Soothing Toy Safe for Chewing No Paint
$32.30
Baby Wooden Rattle Toy - Chewable Traditional Goat Skin Shaker for Newborn Boys and Girls
$9.80
Yuanhengtong Whiteness Meter WSB-1/2Y/3Y/CY, Digital Whiteness Tester for Paper, Flour, Paint, Plastic, Ceramics, and Textiles
$1,055.80
G460 Fast-Drying Glue for Plastics Bonds PP PVC ABS PC PS Strong Low-Whitening Transparent Instant Adhesive
$38.80
Children's Drawing Board Blackboard Whiteboard Accessories Colorful Whiteboard Markers Chalk Set Magnetic Stickers Toys Letters Numbers Eraser
$3.00
Automatic Retractable Air Hose Reel - Pneumatic Hose Drum for Auto Repair, Detailing, and Water/Electric Applications
$295.00
Sheepskin Rattle Traditional Handmade Baby Safe to Chew Brass Stick Bell Clapper Rattle Intangible Cultural Heritage Leather Newborn
$16.00
Glass Reactor with Multi-Function Stirring and High-Temperature Resistance - Double-Layer Glass Reactor from Manufacturer, Customizable
$85.00
Charcoal Blending Stump Set for Sketching - Highlight, Shadow, and Detail Tools with Replaceable Sponge Tips for Artists
$4.80
Minimalist Stainless Steel Toothbrush Holder with Drainage - Ins Style Bathroom Organizer for Cosmetics
$10.40
Qili Automotive Paint Degreasing Cloth – Glue/Dust Removal Paper, Industrial Wiping & Absorbent Paper
$313.12
Qingzhu Sketch Blending Cotton - Professional Sponge Balls & Paper Stumps for Art Students, Colorful Thick Absorbent Drawing Tools
$4.38
Electric Scooter Dashboard Cover for Aima Metaverse PLAY Instrument Panel Screen Protector Waterproof Case
$13.50
Continental Tire 265/40R22 106V XL FR CSC5 SUV - Compatible with BYD Tang (Removed from Vehicle)
$618.00
Yandi Retainer Storage Case for Kids - Lightweight Portable Box for Orthodontic Aligners and Dentures
$8.42
![[Customizable] Blank DIY Bookmarks - Thickened Hard Cardstock in Multiple Sizes with Tassels for Kindergarten and Elementary Art, Calligraphy, and Reading Gifts](https://www.gosteppe.com/cache/medium/product/386159/legacy-main-05a2e5e73e5ac60017fbef5e.webp)
