Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Technical Pens |
| Origin | - |
| Brand | Uni Mitsubishi |
| Tip Type | Extra Fine Slanted Flat |
| Ink Property | Waterproof and Fade-Resistant |
| Tip Material | Soft Flexible Brush Fiber |
| Line Width | 0.4mm - 1.2mm (Variable) |
| Origin | Made in Japan |
| Ideal For | Detail Art, Outlining, and Sketching |
| Drying Time | Quick-Dry Formula |
| Pack Size | Set of 6 Assorted Colors |
| Barrel Design | Ergonomic Grip for Precision |
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for intricate line work
The slanted tip offers incredible control for varying line widths without changing pressure too much. The ink flows smoothly and is truly waterproof once dry.
Anonymous
Mar 25, 2026
Rating: 5/5
Best fineliners I've owned
As an architect, I need precision. These pens deliver clean, sharp lines every time. The soft tip feels durable and hasn't frayed after weeks of daily use.
Anonymous
Mar 24, 2026
Rating: 5/5
Waterproof claim is accurate
I tested these with watercolor overlays, and the ink did not bleed or smear at all. Excellent quality consistent with other Japanese stationery brands.
Anonymous
Mar 17, 2026
Rating: 4/5
Great for calligraphy beginners
I bought these for hand-lettering practice. The slanted flat tip makes it easy to create thick and thin strokes naturally. Only wish the set came with more color options.
Anonymous
Mar 15, 2026
Rating: 5/5
Smooth and reliable
No skipping or blotching. The ergonomic barrel makes long drawing sessions comfortable. Highly recommend for technical illustrators.
Anonymous
Mar 04, 2026
Rating: 4/5
Solid choice for sketching
The flexibility of the tip allows for dynamic sketches. They dry very quickly, which is great for left-handed artists like me who tend to smudge.
Q: Do these pens contain acid-free ink?
A: Yes, the ink used in Uni Mitsubishi Fineliner pens is acid-free and archival quality, making them safe for long-term artwork preservation.
Q: Is the cap airtight to prevent drying out?
A: The pens feature a secure snap-on cap designed to minimize air exposure, helping to keep the soft tip moist and ready for use even after periods of inactivity.
Q: What is the exact range of line widths this slanted tip can produce?
A: Depending on the angle and pressure applied, the slanted flat tip can produce lines ranging approximately from 0.4mm (fine edge) to 1.2mm (broad side).
Q: Are these pens suitable for use on watercolor paper?
A: Yes, these pens work excellently on watercolor paper. The waterproof ink ensures your outlines remain crisp even when wet media is applied over them.
Q: Can the tip be refilled or is it disposable?
A: These are designed as disposable fineliners. Once the ink is depleted, the entire pen should be replaced to ensure optimal performance and line quality.
Baohong Watercolor Paper Artist Grade 1/2/Full/Half Sheet, Student Grade 300g 100% Cotton Pulp, Rough/Medium/Fine Grain Roll
$33.00
Metal Garden Bed - Large Size Vegetable Planter for Balcony and Home Gardening
$1,033.00
Custom Travertine Stone Signage with Natural Marble 3D Lettering and Spherical Characters for Cafes, Clothing Stores, and Studios
$170.00
CANDLE.LAB | Realistic Cookie Series DIY Aromatherapy Plaster Candle Diffuser Handmade Silicone Mold
$12.00
Zhao Mengfu Calligraphy Copybook - Running Script 'Qingyun Zhi', Red-Traced Practice Paper for Beginners in Calligraphy
$15.80
Aesthetic Street Scene Watercolor Line Art for Coloring, 16K Landscape Watercolor Coloring Book, Painting Book, Cotton Pulp Watercolor Album
$15.80
Warehouse Nitrogen Sealing Generator - High-Purity Food-Grade PSA Skid-Mounted Container Equipment
$959.00
Ransheng UV Resin Gel, UV Crystal Glue for Gemstones, Ear Cuff Sealing, Dried Flower Molds, DIY Quick-Dry UV Epoxy
$44.00
Dairy Processing Production Line, Pasteurized Milk Equipment, Low-Temperature Sterilization and Fermentation Machine for Cow and Camel Milk
$8,203.00
Blue Lint-Free Wiping Paper - Industrial Large Roll Oil-Absorbent Shop Towels
$62.00
Green-Red AB Glue 5-Minute Fast-Drying Acrylate AB Glue for Glass Ceramic Metal Structural Adhesive Quick Set
$18.13
![Northern Wei Dynasty Inscriptions: Twenty Pieces from Longmen [Rubbing] - Original Size Wei Bei Calligraphy Copybook from Luoyang Longmen Grottoes](https://www.gosteppe.com/cache/small/product/270189/legacy-main-0c626807b3c375d4d5d6a89b.webp)
Northern Wei Dynasty Inscriptions: Twenty Pieces from Longmen [Rubbing] - Original Size Wei Bei Calligraphy Copybook from Luoyang Longmen Grottoes
$40.30
Ru Kiln Celadon Ceramic Brush Washer Set - Large, Medium, and Small Ink Dishes for Chinese Calligraphy and Painting Supplies
$88.80
Multi-Layer Over-Toilet Storage Rack for Bathroom, Laundry Room, and Balcony - Floor Standing Organizer
$44.96
Wrought Iron Solid Stainless Steel Letters – Minimalist Space Signage, Custom Metal Advertising Letters for Storefronts & Feature Walls
$10.00
Shimoyama 304 Stainless Steel Telescopic Rod - Kitchen Sink Cutting Board Support Rack for Dish Drying and Cloth Hanging
$74.80
Modified Wheel Lug Nuts Forged Steel High Strength for Lafesta Regal CT4 Civic Accord Crown Mazda3
$209.00
Milk Separator Machine - Electric Cream Skimmer and Butter Churn for Home and Commercial Use (Cow and Goat Milk)
$946.00
Three-Phase Auto-Reclosing Leakage Circuit Breaker - Smart Phase Loss, Undervoltage, Overload Protection with 485 Communication for PV Grid Connection
$693.20
Multi-Function Vegetable Cutter Commercial Electric for Cafeterias Fully Automatic Chili Scallion Chopper Imitation Hand-Cut Leek Machine
$1,600.00
Zhengtong ZT30 Fog Cannon - Micron-Level Humidification & Cooling Spray System for Steel Mills
$6,000.00
100Pcs Custom Clothing Hang Tags Personalized Plastic Securi
$125.94
Wall-Mounted Bathroom Storage Shelf, No-Drill Organizer for Sink, Shower, and Toilet Area
$5.76
Thickened 5mm Wool Felt Mat for Calligraphy Practice - Premium Writing Pad for Students and Beginners, Part of Four Treasures of the Study Set
$2.80
Multi-Function Car Tire Stone Removal Tool with Hook for Picking Out Rocks
$4.06
Label Stripping Machine – Semi-Automatic Unit for Beer, Baijiu, and Glass Bottle Label Removal; Custom Manufacturing Available
$19,980.00
High-Strength Manganese Steel Lifting Chain 6*18mm G80 Wear-Resistant Towing Chain
$84.34
Touchmark Acrylic Markers for Elementary Art, Washable Watercolor Pens for Kids' Drawing and Painting
$10.80
Official Flagship Store Steel Tongue Drum, C Key, 6-inch, 11 Notes, Carbon Steel Performance Grade Instrument for Kids and Students
$41.10
Outdoor Waterproof Backpack Camouflage Dry Bag with Wet/Dry Separation for Swimming, Rafting, and Trekking
$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)
