Vietnam War-related patches purchased in Vietnam. They have a vintage look and feel, and appear dirty, so they are listed as "Used with scratches and dirt." There is no adhesive on the back, so please sew them on or use an iron-on adhesive sheet (DAISO, etc.). [Regarding Bulk Purchase] Currently, we are declining all requests made through the "Bulk Purchase Request" function. This is because the system automatically stops the listing or generates a dedicated page when a request is received, but it seems that the requester often doesn't notice the dedicated page, resulting in non-purchase cases. If you wish to purchase multiple items, please feel free to contact us through the comment section of the product. We will confirm and respond smoothly. For purchases of 5 or more items, we will ship via Nekopos instead of regular mail. Please note that you cannot combine items after purchase due to Mercari's system limitations.