Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Whiteboard Markers
Origin	-
Brand	Pentel
Model Name	KNOCKLE MW85
Tip Type	Soft Bullet Tip
Ink Color	Black
Line Width	Medium (2.0mm)
Capacity	Large Volume Ink Tank
Retractable	Yes, Knock-style mechanism
Erasability	Easy dry-erase formula
Recommended Use	Office, Classroom, Conference Rooms
Package Quantity	1 Marker

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Perfect for daily classroom use

I teach high school math and go through markers quickly. These Pentel KNOCKLE markers last significantly longer than other brands. The soft tip glides smoothly without squeaking, and the ink erases cleanly every time.

Anonymous

Mar 29, 2026

Rating: 5/5

Best marker I've owned

I've tried almost every brand on the market, and this is by far the best. The retractable feature prevents the tip from drying out if you forget to cap it immediately. Excellent product quality.

Anonymous

Mar 29, 2026

Rating: 4/5

Reliable and clean

Very satisfied with the purchase. The marker writes dark and bold, making it easy to read from the back of the room. Erasing requires minimal effort. A solid choice for teachers.

Anonymous

Mar 21, 2026

Rating: 5/5

Soft tip is a game changer

The soft tip feels great to write with. It provides just enough friction for control but is smooth enough for fast note-taking. The large capacity means I haven't had to replace it in three weeks of heavy use.

Anonymous

Mar 12, 2026

Rating: 4/5

Great ink flow, sturdy cap

The knock mechanism is very convenient so I don't lose caps during meetings. The ink flow is consistent. I deducted one star only because I wish they came in a bulk pack with more color options.

Anonymous

Mar 04, 2026

Rating: 5/5

No more ghosting!

We switched our entire office to these markers last month. Previously, our whiteboards had stubborn ghosting stains. With the Pentel KNOCKLE, the boards look brand new after wiping. Highly recommended for professional settings.

5 FAQ

Q: Is the ink refillable once it runs out?

A: No, the Pentel KNOCKLE Whiteboard Marker is designed as a disposable unit with a large capacity tank. Once the ink is depleted, the entire marker should be recycled according to local guidelines.

Q: How long does the ink typically last with daily use?

A: With average daily use in a classroom or office setting, one marker can last approximately 3 to 4 weeks. Heavy continuous writing may reduce this duration slightly.

Q: Does this marker work well on glass surfaces?

A: Yes, this marker works excellently on non-porous surfaces including whiteboards, glass, and ceramic. The ink erases cleanly from glass when wiped with a dry or slightly damp cloth.

Q: Is the soft tip durable enough for rough whiteboard surfaces?

A: The soft tip is engineered to be resilient and maintains its shape well. However, for optimal longevity, we recommend using it on standard smooth whiteboard surfaces rather than textured or damaged boards.

Q: Are there different colors available for this specific model?

A: Yes, the KNOCKLE series is available in Black, Blue, Red, and Green. Please check our store listings to select your preferred color variant.

Explore your interests

Deli Universal Staples 24/6 Standard Size No. 12 Staple Pins 0012 - Stainless Steel Durable Small Staples for Staplers

$7.90

XuedeLe Calculator, Goddess Style for Office, Cute Student and Accounting Solar Multifunctional Internet-Famous Mini Small Computer, High Aesthetic Pink Female Voice Model with Large Keys for Commercial Use

$8.50

Bulk Pack | GuGu WanWu Concentric Circle Dual Blush Gradient Soft Light Round Stickers for Journaling, Basic Decorative Marking and Background

$4.25

Qingheji About Youth Classmate Record Book for Elementary School 6th Grade Ins Niche Minimalist High-Aesthetic Graduation Memorial Album

$37.50

Tengzhou Dongfang Hailida ZQ3050 Mechanical Radial Drill Press Gears z20/39 Teeth, z29/47 Teeth, z31/58 Teeth

$140.10

[Customizable] Blank DIY Bookmarks - Thickened Hard Cardstock in Multiple Sizes with Tassels for Kindergarten and Elementary Art, Calligraphy, and Reading Gifts

$9.90

Custom Record Book Table Creation Printing Account Book Register Appointment Book Table Book Detail Sheet Printing Customization Various Account Books Powerful Manufacturer

$4.25

Deli Transparent Tape Dispenser - Mini Desktop Cutter with Serrated Edge for Office Supplies

$6.70

Rongbaozhai Shengtan Calligraphy Brush Special Mixed Hair Medium Wolf Hair Medium Kaifu Professional Grade Goat Hair National Painting Extra Large Clerical Script Yan Style Kaishu Xingshu Beginner Calligraphy Set

$29.70

Calligraphy Fountain Pen with Curved Nib for Students and Adults, Hand-Polished High-Aesthetic Hard Brush Pen for Business, Office, and Personalized Signatures

$13.82

Custom Desk Mat Board Compatible with Old Guangming Yuandi Study Desks - Winner/Wisdom/Benevolence Solid Wood A Series Custom Mats

$18.00

Marie's Sketch Tool Set for Beginners, Basic Sketching Pencils (2B, 4B, 6B), Complete Art Student Drawing Kit with Easel and Professional Sketch Pens

$20.00

Zuohui Paper Palette: Tear-Off Mixing Paper, No-Wash Mixing Book, Disposable Palette for Watercolor, Acrylic, and Oil Painting, Peel-Off Mixing Board

$5.60

Red Fat Professional Watercolor Brush Set: Round Tip Liner Brushes, Nylon Brushes for Art Students; Black Swan Series Single Pack Available

$2.45

Comic Introduction Hand-Drawn Tracing Book Anime Character Line Art Drawing Children's Sketching Beautiful Girls Ancient Style Character Painting Basic Self-Study Tutorial Sketching Cartoon Album

$7.65

HITOTO Oil Pastel Set Super Soft Heavy Color 36 Colors 48 Colors Macaron Series Middle School Kindergarten Art Drawing Dedicated White Oil Chalk Soft Crayon Painting Paper Scraper Tool Complete Set

$18.58

Kraft Paper Notebook B5 Thickened for Junior High, Exam Prep, High School Homework, College, Large A4 Journal, 2026 New 16K/A5 Work Log, Lined Single-Line Exercise Book

$2.35

Art Portfolio Bag, Black Thickened Canvas Large Capacity Backpack for Art Exams and Sketching, Dedicated for Art Students, Portable Multi-Function Double-Shoulder Drawing Board Bag, 4K Art Bag

$23.49

The Tale of Outcasts: Hero Exploration Acrylic Standee, Haruka Katsuragi Acrylic Figure

$14.20

Home Picture Book Stand, Solid Wood Bookshelf, Storage Rack for Books and Toys, Floor-Standing Display Shelf

$1.00

Free Shipping 50 Pieces 4.2 Yuan 420 Fen Postal Postage Envelopes No Address No Zip Code Discounted Envelopes for Registered Mail Real Photos

$135.93

Pure Cotton Red Scarf for Elementary Students, Fade-resistant Universal Wrinkle-resistant Small Size for Grades 1-2, Thickened Large Size for Junior High, High-quality Full Cotton Young Pioneer Scarf for Children and Schools

$14.10

Shanjiu Thickened Plastic Snap Button File Bag Transparent A4 with Label Archive Stationery Bag Student Storage Custom Logo

$5.67

Chinese Painting Pigments 12 Colors Beginner Brush Elementary Student Children Introductory Materials Non-Toxic Gongbi Painting 24 Colors Ink Wash Painting Tool Set Chinese Art Supplies Toolbox Complete Landscape Painting Partition Box

$6.80

Postmark Card Album 120 Sheets High Capacity Postmark Card Train Ticket Star Card Album Card Sleeve Business Card Album Business Card Book

$4.99

33cm Kraft Cardboard with Colored Borders, Square with Circular Inner Cutout, Thickened Antique-Style Hard Cardboard for Children's Art and Drawing

$10.60

B5 Fun Dot Grid Pen Control Practice Copybook - Complete Preschool Workbook Set for Ages 3-6, Daily Training Sheets

$7.48

HD LCD Landscape Drawing Board for Children; Electronic Handwriting Doodle Pad, Small Blackboard for Early Education and Intelligence Development

$3.28

Dragon Ball Card Binder Nine-Grid Storage Album Large Capacity Pikachu Bag Cards Super Saiyan Card Sleeves

$34.70

Free Shipping CBB61 Start Capacitor 6UF 450V Single-Phase Motor Electric Fan Exhaust Fan Blower Range Hood Capacitor

$21.30

Zhongbai Paint Marker SP-110 Oil-Based Touch-Up Pen DIY Album Graffiti Pen White Marker Pen Touch-Up Pen

$2.33

Linen Oil Painting Board Ultra-Thin Beginner Painting Hand-Painted Oil Paint Acrylic Pure Cotton Canvas Art Material Lightweight Portable

$10.28

touchmark Antique-Style Raw Edge Paper for Calligraphy - Unlined Xuan Paper for Brush Writing Practice, Handmade Bamboo Pulp Yuanshu Paper, Thickened Semi-Sized Calligraphy Work Paper

$11.80

Duosuoduoxi Multifunctional 4K Art Portfolio Bag - Thickened Wear-Resistant Large Capacity Backpack for Art Exams, Sketching, Plein Air, and Art Storage

$66.50

Pride Leads to Loss, Humility Brings Benefit - Handwritten Calligraphy Wall Art Desktop Ornament Decorative Study Student Inspirational Learning Calligraphy

$8.40

Mao Taizi Reading Stand Kids Desktop Book Holder Multifunctional Student Reading Bracket Learning Artifact Book Clip Fixed Book Clamp Portable Desktop Book Stand

$9.90

Xiaohongshu Same Style Pink Bud Mint A7 Loose-Leaf Planner, Korean Ins Style High-Aesthetic Portable Diary Notebook

$5.02

Zhang Xiaofeng 'Peach Blossoms' Rose Quartz Brush Rest, Brush Holder, Brush Mountain, Brush Stand, High-Aesthetic Creative Calligraphy Accessory for Women, Jade Cultural Study Ornament, Small Gift

$35.70