Regarding packaging bags, a minimum order of 2 pairs is required.Add shoe box, contact customer service About the standard size. Regarding invoicing, these prices are excluding tax. Please contact customer service for invoicing Regarding the smell, shoes that have just left the factory may have a bit of glue odor, but this is unrelated to the quality. The glue smell will dissipate in a well-ventilated area. Regarding after-sales service, if there are any issues with the sold shoes, please contact our customer service to explain the situation, and we will handle it responsibly. Regarding small shipments, they are sent by default through ZTO. If there is a designated courier, it must be agreed upon by customer service; otherwise, it will be invalid. For large items, they are sent through Yunda Express Logistics, etc. You can also choose standard logistics with cash on delivery or self-pickup logistics. Logistics only reach cities and counties, not necessarily districts and towns. All products do not include free shipping; for further questions, please consult customer service. Regarding quality issues such as bottom breakage, degumming, damage, severe color difference, and significant stains, our company will cover all costs for handling.Small threads, minor stains, slight color difference, and slight glue smell are not quality issues.