
are Wolowitz's BELT buckles.
The Big Bang Theory Season 12, Episode 24

That's a lot of BELT buckles.
The Big Bang Theory Season 5, Episode 21

I haven't fastened my seat BELT yet.
The Big Bang Theory Season 2, Episode 5

It's a light saber
BELT buckle.
The Big Bang Theory Season 12, Episode 24

Remember that little object
I spotted beyond the Kuiper BELT?
The Big Bang Theory Season 2, Episode 4