Mystery part loose in box - please help identify!

[ATTACH]9402[/ATTACH]

Found this rattling around inside the box when unpacking our brand new chest freezer. Tried looking at part supply sites and couldn’t find it…the only sort of part that I could find which looks remotely like this thing is a refrigerator hinge pin bushing:

https://partsdr.com/part/4984jj3003a-hinge-bushing/?gclid=Cj0KCQiA38jRBRCQARIsACEqIesaz3rZcYtQo5tn_NB_IY3qTWPAgeDrvUDtACDb8ev8jXgKxcecnaAaAi8YEALw_wcB

However, the part I found is rubber-y, not hard plastic. It also doesn’t have any sort of insert on the bottom. Any help is appreciated, thank you!
2j26maw.jpg (28.6 KB)

Is it a plug for the defrost drain?