Ningbo Wuyun Pen Manufacturing Company Limited is an ISO9001 certified manufacturer specialized in producing almost all kinds of writing instruments, such as highlighters, permanent markers, whiteboard markers, roller ball pens, gel pens and ball pens. With ten years' experience in supplying writing instruments for the retail market and promotional product market, we can manufacture up to 1,000,000 pieces every day to fill your volume orders. Our products conform to EN-71 and ATM D-4236 standard. Our comprehensive QC system ensures our products meet your quality requirements. Being sensitive to consumer taste and the marker trends, we strive to supply you with most competitive products for your market. We warmly welcome OEM project and long-term partnerships. Send us your designs or even just the idea, and our R&D team will work on your exact specifications. Contact us for more details and up-to-date products.