Chicago Bulls Vintage Style Bullistic Pin Back Button
Item Description
The Chicago Bulls Vintage Style Bullistic Pin Back Button featuring Michael Jordan is a patriotic and nostalgic accessory that celebrates the illustrious history of the Chicago Bulls in the NBA. Made in the United States, this red pin with a bull design is a must-have for fans of basketball and the iconic team. Perfect for showing support for the Bulls, this one-size button is a unique and stylish way to represent your favorite sport and team.
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.