Sample customization: when our factory does not have the products you need, we can also produce them according to the products provided by our customers. Our factory will try our best to find the same mold for production, so as to reduce the customization cost, so that no mold costs will be incurred in the production process, so customers should rest assured as much as possible. Since our factory has produced advertising marker gift pen for nearly two decades, our factory will know the source of the mold of general pens, sample customization almost does not incur mold costs.