
Gxin G-200b Factory Wholesale Price Valve System Refillable White Board Marker Pen. OEM/ODM Acceptable: Supports customized graphic, packaging, nib, and mold services. High Production Capacity: Annual output exceeds 300 million units with 8 automated lines. Multi-Color Options: Available in 4 colors with medium soft hardness for office and school. Versatile Writing Medium: Suitable for whiteboards, glass, and paper with dry/wet erase ink. Free Sample Service: Free samples provided; express fee needed, refundable upon order. Strict Quality Control: 122 advanced machines ensure precision and high-quality standards. Global Brand Reputation: Welcome in over 50 countries with consistent high customer praise. Professional Manufacturer: 20 years history with 272 employees and 20 production lines.