1. Source description: Direct supply from the manufacturer, short production cycle, and guaranteed product quality. 2. Regarding the size, due to manual measurement, there may be an error of approximately 0.5mm. If our product does not have the size specification you need, you can consult through Wangwang or call us directly to communicate. We will provide you with all-round customization services. 3. Regarding color, all product images are taken of the actual items. However, due to factors such as shooting lighting, display screens, and personal color perception, there may still be color differences in the images. Customers who are particularly sensitive to color differences are advised to communicate with our customer service before making a careful choice. 4. Regarding logistics, our default Courier companies are Tiantian Express or Yunda Express. Large orders will all be sent by logistics. You can negotiate to choose the logistics company. Please check before placing an order whether it is within the delivery range, such as