Your Brand. Our Pen Factory.
Custom Markers, Highlighters & Art Sets.

Kaywin is China's leading OEM pen manufacturer — helping 300+ global brands develop, manufacture, and scale custom markers, highlighters, fineliners and art sets from Wenzhou, China.

Home Solutions OEM & Private Label
Kaywin product display at exhibition
Kaywin Kaywin — 8 Product Lines

OEM Pen Manufacturing — From Concept to Branded Product

5K
Min. MOQ
3d
Sample Ready
3.5M
Pens/Day
ISO
Certified
How We Work With You

OEM Pen Manufacturing — Built for Every Buyer, From First Order to Full Custom.

Whether you're sourcing for your own brand or for clients, Kaywin adapts to where you are in the process. Two flexible starting points — same factory, same quality, no minimum commitment to lock you in.

Full OEM / ODM Pen Manufacturing

You own the brief. We handle everything from engineering to production. This is what Kaywin has been doing for 20+ years — building other brands' pen products from scratch or from your existing spec.

For Brand Owners

Own an exclusive SKU. We build your product from scratch — mold, ink formula, and packaging. Your design, your IP, zero leakage.

For Distributors

Apply your clients' brand or your own. Flexible MOQ, fast sampling, and a 200+ SKU catalog to draw from — built for multi-client sourcing.

Every OEM Order Includes
  • Accept your existing molds OR provide free new mold design
  • Custom pen tip geometry, barrel, cap, clip — every component
  • Private ink R&D: Pantone-matched, climate-adapted, exclusive formulas
  • Your artwork, logo, and full packaging dieline design included
  • EN71, ASTM, REACH, CA Prop 65 compliance documentation provided
  • NDA signed upfront — full IP and design confidentiality protected
  • Suitable for brand owners, supermarket buyers, and distributors
Full Product Range

Browse Every OEM Pen Category — Specs, Features & Links

11 product lines, all available for full OEM customization. Click any category to see available styles, MOQ, and sample products.

Color Pens
Browse 118 products →
🖊️ Color Pens

The bestselling OEM category for back-to-school and arts retail. Washable & super washable variants.

  • Up to 120 colors per set
  • Water-based, non-toxic, EN71 safe
  • Single-tip, dual-tip & triangular barrel
  • Washable / super-washable formula
View range →
Highlighters
Browse 34 products →
🖍️ Highlighter Pens

Office staple with seasonal school volume. Fast-dry, low-bleed formula in 80+ fluorescent shades.

  • Chisel & bullet tip options
  • 80+ fluorescent & pastel colors
  • Fast-dry, low-bleed ink
  • Supermarket & office channel optimized
View range →
Brush Markers
Browse 63 products →
🎨 Brush Markers

High-margin art retail category. Flexible nylon tip delivers consistent stroke width control.

  • Flexible nylon brush tip
  • Water-based & alcohol-based variants
  • Calligraphy, illustration & manga use
  • Single or dual-tip configurations
View range →
Fineliners
Browse products →
✏️ Fineliner Pens

Precision writing for journaling, technical drawing, and professional annotation.

  • Tip sizes: 0.3 / 0.4 / 0.5 / 0.8mm
  • Metal-clad tip for precision & durability
  • Fade-resistant ink for archival use
  • Popular for stationery & art channels
View range →
Permanent Markers
Browse 34 products →
✒️ Permanent Markers

Industrial-grade markers for labeling, logistics, and office channels. Writes on any surface.

  • Bullet & chisel tip variants
  • Writes on glass, metal, plastic, paper
  • Quick-dry, water-resistant ink
  • Custom tip sizes & barrel lengths
View range →
Whiteboard Markers
Browse products →
📋 Whiteboard Markers

Low-odor erasable formula for education and corporate channels. Easy clean-up.

  • Low-odor alcohol-based formula
  • Clean erase on whiteboards & glass
  • Chisel & bullet tip options
  • Custom cap colors for brand differentiation
View range →
Metallic Markers
Browse products →
⭐ Metallic Markers

High-impact visual effect for gift wrap, scrapbooking, and craft retail channels.

  • Gold, silver + 30+ metallic shades
  • Opaque ink — shows on dark surfaces
  • Fine & medium tip options
  • Popular for seasonal & gift ranges
View range →
Glitter Markers
Browse products →
✨ Glitter Markers

High-sparkle effect for DIY craft, kids' art, seasonal gifting, and holiday retail.

  • Fine glitter suspended in ink
  • 30+ color options in glitter formula
  • Works on paper, card, fabric
  • Strong back-to-school & gifting demand
View range →
Acrylic Markers
Browse products →
🎭 Acrylic Markers

Professional-grade opaque markers for canvas, rock art, and specialty art retail.

  • Water-resistant acrylic ink formula
  • Works on canvas, rock, wood, glass
  • Valve-controlled ink flow
  • Fine, medium & broad tip variants
View range →
Art Sets
Browse products →
🎁 Art Sets & Gift Packs

High-margin multi-SKU sets for back-to-school, seasonal gifting, and gift retail.

  • Mix-and-match across all categories
  • Full custom packaging & box design
  • Seasonal & premium gift configurations
  • Popular with supermarket buyers
View range →
Specialty & Other Products
Browse products →
🔖 Specialty & Others

Stamp markers, CD markers, correction pens, and unique writing instruments.

  • Stamp marker (rubber tip + ink pad)
  • CD / DVD / multi-surface markers
  • Correction pens & specialty inks
  • Available for full OEM customization
View range →
🎯
Ready to Source Custom Pens?

11 product lines. All available for full OEM customization with free mold design.

View Full Catalog → Request Samples
Why Kaywin vs. Other Factories

What Makes Kaywin Different From Other Pen Manufacturers

🌡️

Climate-Adapted Ink — Not Just "Custom Color"

Most factories mix colors. We engineer ink behavior. Our humidity-adapted formulas are specifically built for tropical markets like Brazil — preventing drying, leakage and viscosity shifts in 90%+ humidity conditions.

Key for Brazil, SE Asia, Colombia
📏

350-Meter Drawing Length Test

We run a standardized 350-meter continuous line test on every ink batch. We share the test report with you — so you can benchmark our products against competitors before placing a bulk order.

Data you can compare, not claims
🔧

Free Mold Design — Others Charge ¥8,000–30,000

Custom mold tooling typically costs ¥8,000–30,000 per mold at most factories. At Kaywin, qualifying OEM orders include free mold design — removing the biggest upfront cost barrier for new product development.

Saves ¥8K–30K per mold
🎨

180+ In-House Ink Formulas — Not Sourced Externally

We develop every ink formula in our own laboratory, investing 5% of yearly revenue in R&D. This means faster color matching, exclusive formulations that competitors can't copy, and full traceability on every batch.

Exclusive color ownership
✈️

Airfreight-Feasible Products

Many factories produce pens that are too heavy or leak-prone for air shipping. Kaywin designs products with air-transport viability in mind — important for European brands needing faster restocking without sea freight lead times.

Faster replenishment for EU brands
📦

One Factory — Design, Ink, Tip, Barrel, Packaging

No subcontracting. Our factory produces tips, barrels, ink, and packaging in-house — giving you a single point of accountability, faster sampling, and fewer quality control gaps between suppliers.

Zero subcontracting hand-offs
How It Works

From Brief to Branded Custom Pen — How Our OEM Process Works

01
Inquiry

Share product idea, target market and estimated volume. We respond within 24h.

Day 1
02
Sample

Factory quote, catalog, and physical sample of the closest product dispatched.

Day 3–7
03
R&D & Design

Tip, barrel, ink formula and packaging artwork finalized by our in-house team.

Day 7–21
04
QC & Sign-Off

Pre-production sample approval, lab testing (EN71/ASTM/REACH) and sign-off.

Day 21–30
05
Production & Ship

Mass production at 3.5M/day. Air or sea delivery worldwide with tracking.

Day 30–60
What We Offer

One Pen Factory. Complete Custom Marker & Highlighter Solutions.

Colorful brush markers and custom pen product design
Free Mold Design
Custom Product Design

Full Control Over Every Pen Component

From tip geometry to barrel color — every element is engineered to your specification. We accept your existing molds or design new ones at no cost for qualifying orders.

  • Tip types: bullet, chisel, brush, fine point, stamp, dual-tip
  • Barrel: diameter, length, shape (round/hex/triangular), grip texture
  • 130+ injection machines, EDM mold accuracy to 0.003mm
Colorful ink and dye formulation — Private Ink R&D
180+ Formulas
Private Ink R&D

Custom Ink Formulas — Exclusive, Pantone-Matched & Climate-Adapted

5% of annual revenue goes into R&D. Every formula is developed and tested in-house — including climate-specific variants for tropical humidity (Brazil, SE Asia) and cold-weather stability (Northern Europe).

  • 80+ fluorescent colors — exclusive private label formulas available
  • Metallic, glitter, erasable, washable, fast-dry, scented variants
  • Pantone matching + 350m drawing length test report provided
See Our R&D Lab
Kaywin pens and markers displayed on retail supermarket shelf
Brand-Ready Packaging
Custom Packaging Design

Custom Pen Packaging That Sells on the Shelf

In-house packaging design team creates retail-ready brand packaging — from single-pen blister cards to full art set gift boxes. Optimized for your channel: mass retail, e-commerce, or specialty stationery.

  • Full dieline design included — no additional cost
  • Eco-friendly materials for European and North American markets
  • 200+ new SKUs per year — trend reports shared to partners proactively
Browse Packaging Options
Parameters & Standards

OEM Pens Built to Pass Any Market's Compliance Standards

20+ QC checks run in our in-house laboratory. Full compliance documentation provided for your target market on request.

Certifications

Fully Certified for Every Major Export Market

We hold ISO 9001 / 14001 / 45001 and carry market-specific certifications for Europe, North America, and international retail audits.

ISO 9001  ·  ISO 14001  ·  ISO 45001  ·  EN71-3/9  ·  ASTM D-4236  ·  REACH  ·  CA Prop 65  ·  USP-61/62  ·  BSCI  ·  Walmart Audit
View Lab & Test Reports →
Kaywin laboratory QC testing
In-House Laboratory
Every batch tested before shipping — test reports on request
See It In Action

Watch How Kaywin OEM Custom Pens Are Made

Factory Walkthrough

From Your Idea to Finished Branded Pen — One Factory, Full Control

This video takes you through Kaywin's end-to-end OEM manufacturing process — from mold design and ink R&D, through injection molding and barrel assembly, to packaging and QC sign-off. Everything in one factory, under one roof.

  • 01 In-house mold design & precision injection molding (0.003mm accuracy)
  • 02 Private ink R&D laboratory — 180+ formulas developed in-house
  • 03 Brand packaging design & full QC documentation for your market
Regional Market Intelligence

We Know What Pen Buyers Need — By Region

Compliance requirements, seasonal patterns, and ink specs differ by market. Kaywin has sourced for all of them — with region-specific formulas and documentation ready.

🌍
Europe — France, Germany, Spain, UK

EN71 and REACH compliance is non-negotiable for EU buyers. Eco-friendly packaging and consistent batch quality are expected. We supply full EN71-3/9 test documentation and localized artwork for shelf-ready delivery.

EN71-3/9REACHEco PackHighlighters
🌎
Americas — Brazil, Mexico, Colombia, USA

Tropical humidity in Brazil and Colombia demands climate-adapted ink chemistry. US buyers require ASTM D-4236 and CA Prop 65 documentation. Strong back-to-school seasonality drives high-volume orders across the region.

Humidity InkASTM D-4236CA Prop 65Back-to-School
🌏
Middle East, Africa & Asia Pacific

Gulf e-commerce buyers demand zero-complaint supply reliability. African buyers need competitive pricing on highlighters and color pens. SE Asian markets combine back-to-school volume with strong art retail growth.

Supply StabilityHighlightersValue LinesArt Sets
Global Track Record

300+ Brands in 60+ Countries — Already Trust Kaywin

From European supermarket chains to South American school brands — Kaywin OEM pens reach end consumers across every major market.

WHSmith
WHSmith
UK Retail
Walmart
Walmart
USA Retail
E.Leclerc
E.Leclerc
France Retail
ASDA
ASDA
UK Supermarket
🇺🇸 USA 🇧🇷 Brazil 🇫🇷 France 🇩🇪 Germany 🇬🇧 UK 🇦🇺 Australia 🇪🇸 Spain 🇨🇦 Canada 🇲🇽 Mexico 🇯🇵 Japan 🇦🇷 Argentina 🇨🇴 Colombia 🇵🇪 Peru 🇸🇦 Saudi Arabia 🇳🇮 Nicaragua 🇵🇭 Philippines
Common Questions

Questions Buyers Ask
Before Placing an Order

We've compiled the most common questions from brand owners, distributors and supermarket buyers. Click any question to expand.

What is your minimum order quantity?
MOQ starts from 5,000 sets per SKU for most products. For selected hot items from our catalog (private label path), lower MOQ options are available. If you're ordering multiple SKUs, we can discuss combined minimums. Contact us with your product list and we'll confirm immediately.
Do I need to pay for mold design?
No — for qualifying OEM orders, Kaywin provides free mold design. Most factories charge ¥8,000–30,000 per mold. We absorb this cost as part of the OEM partnership. If you supply your own mold files or physical molds, we can work with those directly.
How long does it take from inquiry to first delivery?
For private label (catalog styles): sample in 3 days, bulk delivery from ~35 days. For full OEM custom products: sample in 7–21 days depending on complexity, bulk delivery in 45–60 days from confirmed order. We provide a full timeline at the proposal stage.
Can you match our specific Pantone color or competitor product?
Yes. Our in-house lab develops custom ink formulas matched to your Pantone reference or a physical product sample you send us. We also provide a 350-meter drawing length test report for each ink batch — so you can benchmark against your current supplier before committing.
We sell in Brazil / tropical markets — can your ink handle the humidity?
Yes, this is a specific capability we've built for South American partners. We formulate humidity-adapted inks that maintain viscosity stability and prevent cap-seal drying in 85–95% humidity environments. We've supplied brands in Brazil, Colombia, and Nicaragua with region-specific formulations.
What certifications can you provide for the European market?
We provide: EN71 Parts 1/2/3/9 (children's toy/stationery safety), REACH compliance, and ASTM D-4236. We also hold BSCI, ISO 9001/14001/45001, and have passed Walmart and ICS audits. Full test reports are available on request before you place an order.
Will you keep my product design confidential?
Yes. We sign a full NDA before any design files or specifications are shared. Your mold designs, ink formulas, and packaging artwork are treated as exclusive IP — we do not share, replicate, or supply similar designs to competing brands.
What's the difference between OEM, ODM, and Private Label at Kaywin?
OEM: you own the product spec, we manufacture to it. ODM: we design the product together based on your brief. Private Label: you apply your brand to our existing ready-made styles. All three are available at Kaywin — and many brands start with private label, then graduate to full OEM as volume grows.

Contact Us——
Discuss your OEM/ODM project

  • ✅ Get a free quote & product catalog

  • ✅ Request sample testing

  • ✅ Receive  comparison reports 

I’m Here To Assist You