CROATIA FLAG PATCH CROATIAN EMBROIDERED SOUVENIR Hook and Loop Fastener
Item Description
This Croatia Flag Patch is an embroidered souvenir featuring the Croatian national flag design. It comes with a convenient hook and loop fastener for easy attachment to clothing or accessories. This single patch is perfect for those who appreciate flags and political memorabilia, making it a unique and patriotic addition to any collection or project.
Listed by Frooition
These are shipped with eBay standard envelope.  You can sign up for USPS Informed Delivery. You get an email every morning with images of letter mail you'll be receiving that day (ESE should be pictured with the letter mail), and the email will also show a list of package tracking numbers arriving that day.

https://www.usps.com/manage/informed-delivery.htm

When an item is pictured on your informed delivery email, but that item isn't delivered, you can log in to your account at usps.com and report that you didn't receive it. That alerts the PO and they will alert your carrier that a mail piece was missing from your delivery.