Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Other Functional Pens |
| Origin | - |
| Ink Color | Blue |
| Disappearance Time | Approx. 30-60 minutes |
| Tip Size | 0.5mm |
| Compatible Pen Type | Groove Control Practice Pens |
| Package Quantity | 20 Refills per Pack |
| Target Audience | Elementary School Students |
| Material | Non-toxic Plastic and Gel Ink |
| Usage Scenario | Handwriting Practice Copybooks |
| Refill Length | 110mm |
| Special Feature | Auto-fading for Repeated Practice |
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for my daughter's handwriting practice
These refills are a lifesaver! My daughter can practice her letters over and over without wasting paper. The ink fades just fast enough to let her try again.
Anonymous
Mar 18, 2026
Rating: 5/5
Teacher approved!
I bought these for my classroom. The kids love being able to erase their mistakes naturally. Highly recommend for early learners.
Anonymous
Mar 15, 2026
Rating: 4/5
Great eco-friendly option
Reduces paper waste significantly. The ink quality is good, though sometimes the fading leaves a very faint shadow, which is actually helpful to see progress.
Anonymous
Mar 09, 2026
Rating: 3/5
Decent but not magic
It works as described, but don't expect it to vanish instantly. It takes about an hour. Still useful for saving on copybook costs though.
Anonymous
Mar 07, 2026
Rating: 4/5
Good value but fades quickly
Great product overall. The only downside is that the ink disappears a bit faster than expected in hot weather, but still good for daily drills.
Anonymous
Mar 06, 2026
Rating: 5/5
Fits perfectly in groove pens
I was worried these wouldn't fit our specific brand of groove pens, but they slide right in. The writing flow is smooth and consistent.
Q: Can I use these refills on regular paper?
A: Yes, you can use them on regular paper, but the disappearing effect works best on the specialized coating found in practice copybooks.
Q: Is the ink safe if a child accidentally ingests a small amount?
A: The ink is made from non-toxic materials safe for children's use, but it is not intended for consumption. Please consult a doctor if ingestion occurs.
Q: What happens if the ink doesn't fade?
A: Fading speed depends on temperature and humidity. If it doesn't fade, try placing the paper in a warmer environment or ensure you are using genuine refills.
Q: Do these refills work with standard ballpoint pens?
A: No, these are specifically designed for auto-disappearing groove practice pens and may not fit or function correctly in standard ballpoint pens.
Q: How long does it take for the ink to completely disappear?
A: Under normal room temperature conditions, the ink typically begins to fade after 10 minutes and disappears completely within 30 to 60 minutes.
![[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)](https://www.gosteppe.com/cache/small/product/270156/legacy-main-525bdaff56f89ee94752ef9c.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)
$7,000.00
Little Leather Paper Strip Music Box (30-Note) Sheet Music - Contact Before Ordering; Specify Song Email for Digital Score Delivery
$1.00
Kitchen Sink Strainer Basket Push-Type Food Residue Separator Filter Hanging Storage Rack
$3.80
Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair
$66.00
Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container
$159,443.00
Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study
$16.80
Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition
$29.90
Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink
$3.51
Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22
$357.00
Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag
$11.70
Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion
$231,249.00
Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box
$11.85
Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice
$28.00
Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case
$977.00
Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe
$1.00
Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes
$2.50
Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials
$36.00
Color Proofing Instrument Ink Mixing Tool Sample Making Machine
$1,860.00
Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V
$1,430.00
2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids
$11.30
Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line
$113,050.00
Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy
$49.50
![[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting](https://www.gosteppe.com/cache/small/product/270133/legacy-main-a12ad5b62abb27a9a45afaf4.png)
[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting
$7.48
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$41.00
Office and Home Computer Cable Management Sleeve - Desktop Data Cord Organizer and PC Wire Collector
$6.50
Linear Bearing
$75.47
Thickened Aluminum Alloy Stainless Steel Floor Wire Raceway - Surface-Mounted Cable Cover Protector, Anti-Crush, Self-Adhesive Invisible Design
$2.13
Kids Foam Stamp Brushes - Mushroom-Tipped Painting Set for Kindergarten Art and Graffiti Projects
$2.38
Heisidike HZL-32 Portable Stone Removal Hook for Car Tire Tread Cleaning
$9.28
Bixilage Cheese Processing Equipment – Curd Fermentation Machine for Stretchy Hand-Pulled Cheese Production Line
$67,900.00
![[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)
