Hangzhou Tonglu Zhenghua Cultural Products Co., Ltd. is a professional neutral pen supplier that integrates research and development, production, and sales, and provides relevant technical services. With years of OEM OEM production experience and dedicated brand planning, the independent brand "Colorful Rain" has the advantages of high quality, cost-effectiveness, and a wide range of products in the ever-changing neutral pen market, gradually forming a strong position with large domestic leading brands. The company is committed to providing comfortable, fun, environmentally friendly, and cost-effective stationery products, allowing people to enjoy pure writing pleasure and stimulate user creativity.