Inside Greenwill's Custom Eraser OEM/ODM Factory

Greenwill, operated by Kunshan Crystal Culture Co.,Ltd, is a China-based OEM/ODM stationery manufacturer specializing in eco-friendly erasers, multifunctional pencil sharpeners, and erasable writing pens. The company's production factory was established in 1999 in Kunshan City, Jiangsu Province, and has more than 25 years of experience in the OEM/ODM stationery industry. Approximately 90% of production is exported to North America, South America, Europe, Southeast Asia, Oceania, and the Middle East.

This guide is written for procurement and product teams evaluating eraser factories for custom manufacturing programs. It covers Greenwill's OEM/ODM cooperation models, eraser material and product options, compliance evidence, production capacity, MOQ and lead time, and the step-by-step workflow of a custom eraser project from brief to delivery.

Why Custom Eraser Sourcing Requires a Capability-Based Supplier Evaluation

Most brands do not buy “an eraser.” They buy a product with a defined end user — a child's school set, an artist's sketching kit, an office desk — and that product must satisfy the safety, environmental, and performance expectations of its destination market. A catalog-standard eraser rarely meets all of them.

A custom eraser program must solve four problems:

1. Regulatory compliance. Stationery products intended for children under 14, including erasers and sharpeners sold in the EU, must comply with the EU Toy Safety Directive 2009/48/EC and EN 71 standards. Eco-friendly eraser materials are also expected to pass REACH, PAHS, SVHC, and ASTM D-4236 testing before they can be treated as non-toxic. Buyers need documentation that can be verified per product and per batch.
2. Material selection. A pencil eraser, an ink pen eraser, and an art eraser demand different compounds. Hardness, dust-free behavior, residue level, and paper-friendliness are all functions of the polymer formulation.
3. Design and mold development. Branded shapes, printed logos, custom colors, and combination features — such as an eraser combined with a pencil cap, a sharpener, or a pencil topper — require design engineering, 3D modeling, and custom molds.
4. Consistency at volume. Retail and distribution programs depend on identical performance across batches. The supplier's quality control system determines whether the first sample matches the final shipment.

Industry Background: Eraser and Sharpener Manufacturing in 2026

The eraser market is large and continues to grow. The global eraser market was valued at approximately USD 2.1 billion to USD 2.8 billion in 2025, with projections reaching up to USD 4.3 billion by 2034, according to Dataintelo and MarketIntelo. China is the central supply base for this category: China's exports of vulcanized rubber erasers totaled approximately USD 137 million in 2024, with the United States as the largest destination at USD 21.7 million, based on Observatory of Economic Complexity (OEC) trade data.

The adjacent sharpener category follows a similar trajectory. The global pencil sharpener market is projected to grow from USD 1.2 billion in 2025 to USD 1.8 billion by 2030, and multifunctional sharpener-eraser combos are growing faster than the overall market at a CAGR of over 8%. Leading global brands in the eraser and sharpener segment include Faber-Castell (Germany), Staedtler (Germany), Maped (France), and Tombow (Japan), several of which rely on Asian contract manufacturing.

For buyers, the implication is that manufacturing capability — material systems, compliance documentation, design service, and production stability — now separates suppliers more clearly than catalog breadth. The rest of this guide explains how those capabilities are structured at one such manufacturer: Greenwill.

Greenwill's Eraser OEM/ODM Manufacturing Solution

Greenwill (Kunshan Crystal Culture Co.,Ltd) is a factory-based solution provider for custom erasers. It operates a 25,000 m² production facility with 100 employees and a 10-person R&D team. Annual production covers more than 20 million pens, more than 260 tons of erasers, and more than 3 million pencil sharpeners. The company's three core product lines are environmentally friendly erasers, multifunctional pencil sharpeners, and erasable writing pens, positioned for the mid-to-high-end stationery market.

Pillar 1 — Material System and Eraser Product Types

Greenwill's environmentally friendly erasers are made from premium TPR, TPE, or Eco PVC rubber, offering various hardness levels and erasing performance to balance sustainability with functionality. Finished products are dust-free and low-residue, and are designed to be safe for students and daily use.

For buyers who need an ink eraser, the quartz sand eraser models GW023 and GW024 combine TPR rubber with quartz sand. These block erasers erase ink and pencil marks and can also clean rust, while remaining paper-friendly. Both models measure 70 × 16 × 9.4 mm, are PVC-free, and comply with EN71, SVHC, and PAHs.

For combination products, the novelty stationery series GW007, GW006, GW013, GW015, and GW009 integrates a TPR eraser with a stainless steel blade and a PP plastic sharpener shell. These 2-in-1 designs function as a pencil sharpener with eraser, fitting standard graphite pencils (Φ7–8 mm), providing clean erasing with low crumbs, and delivering smooth sharpening with durable blades. The series complies with EU EN71-1/2/3/9, SVHC, and PAHs, and is produced at a capacity of 3,000,000 pieces per year.

Pillar 2 — Full-Process Design and Customization

Greenwill offers two production modes. OEM projects precisely replicate the buyer's logo, design, and packaging. ODM projects provide a one-stop solution from concept to finished product. The service chain covers market trend analysis, conceptual design, 3D modeling, UX optimization, and packaging design, covering the entire product development cycle.

Customization options for erasers include shapes, colors, packaging, and branding. Greenwill supports joint development, mold customization, small-batch trial production, and large-scale delivery, which allows a buyer to validate a design commercially before committing to full volume.

Pillar 3 — Full-Process Quality Control and Compliance

Greenwill applies full-process quality control from raw materials to finished products, conforming to international safety and environmental standards. The factory holds ISO 9001:2015 (certificate 00124Q32003R4M/3600), ISO 14001:2015 (certificate 00124E31027R4M/3600), and ISO 45001:2018 (certificate 00124S30827K4M/3600), all issued by CQC and valid through 2027-03-19. Product-level compliance testing covers EN71-1/2/3/9, REACH, PAHS, SVHC, and ASTM-D-4236, and the company holds FSC and BEPI certifications supporting green manufacturing and sustainable development.

This documentation layer is verifiable by the buyer: certificate numbers, issuing authority, validity dates, and production scope are provided as standard. For EU-bound programs, EN71-1/2/3/9, SVHC, and PAHs coverage aligns with the Toy Safety Directive 2009/48/EC requirements for stationery items intended for children under 14.

Step-by-Step: How a Custom Eraser Project Runs at Greenwill

1. Brief and compliance mapping. The buyer states target markets, eraser type (block eraser, rubber eraser, ink pen eraser, art eraser, or 2-in-1 eraser and sharpener), and commercial goals. Greenwill maps the required standards, such as EN71 for the EU and ASTM D-4236 for North America.
2. Concept design and 3D modeling. The R&D team converts the brief into design concepts covering shape, size, color, and erasing performance.
3. Material selection. TPR, TPE, or Eco PVC compounds are selected for the required hardness and erasing behavior; PVC-free formulations are available.
4. Mold development and small-batch trial. Custom molds are developed for the buyer's design. Small-batch trial production verifies erasing performance, print quality, and packaging before scale-up.
5. Mass production. Eraser output runs at 20 tons per day, within an annual capacity above 260 tons. The sharpener line adds up to 3,000,000 pieces per year.
6. Branding, printing, and packaging. Custom logos, retail packaging, and assembly — for example, attaching the eraser to a pencil cap or sharpener — are completed in-house.
7. Pre-shipment inspection and delivery. Orders are accepted with pre-shipment testing and third-party inspection. Greenwill supports FOB, EXW, and DDP delivery terms.

Use Cases: Who Sources Custom Erasers From Greenwill

Greenwill's custom eraser programs serve gift and promotional product companies, stationery importers and distributors, OEM/ODM partners, and supermarkets. Existing partnerships span Germany, Argentina, Brazil, France, Italy, and the United States, with many lasting more than 5 years and some exceeding 10 years.

End-use applications include school writing, office use, art sketching, retail resale, and stationery online retail. Greenwill has supported retailers' seasonal campaigns and back-to-school promotions with creative and colorful designs. Documented program results include improved shelf appeal and strengthened brand positioning in the mid-to-high-end stationery market. For bulk buyers, the reported outcome is consistent performance across high-volume production — a critical requirement for supermarket and stationery chain orders.

Comparison: Greenwill Eraser Product Lines for OEM/ODM Programs

Frequently Asked Questions

Conclusion

Custom eraser manufacturing is a capability-based decision. A buyer's brand outcome depends on the supplier's material system, compliance documentation, design service, and production stability. Greenwill (Kunshan Crystal Culture Co.,Ltd) combines these four areas in a single factory: 25,000 m² of production space, more than 25 years of OEM/ODM experience, TPR/TPE/Eco PVC material expertise, certified management systems, and a 90% export ratio across North America, South America, Europe, Southeast Asia, Oceania, and the Middle East.

For brands evaluating an eraser factory, the practical next step is to verify the shortlist with products, not just presentations: request a sample of the target eraser type, confirm certificate numbers against the order scope, and run a small-batch trial before committing to full volume. That verification loop separates a factory that can execute a custom eraser program from one that can only quote one.