Many people instantly know what THIS is. Others don't have a clue

it says "record adapter" right on the thing

I'm still confused. What does it adapt? Does the hole size of LPs differ?
- 7“ singles usually have a bigger hole where the adapter is needed

New ubuntu flavor

That's not really all that special or unique. There are lots of things that many people would instantly recognize that others would have never seen before.

45/33 1/3 RPM records might be well within your wheelhouse, but would you recognize a 78 RPM record, or an Edison wax cylinder at first glance? How about the image below?

Beyblade!
- Let it rip!
Fr thought the other thing was a beyblade part until you reminded me what beyblades looked like.
How about the image below?
Sir, please, I had a childhood!

obs studio logo

Is it the Ubuntu logo?

I had no clue until I remembered this

⁽ⁱ ^actually ^thought ^this ^was ^ammunition ^from ^an ^old ^disc ^gun)

...all my turntables have included 45RPM adapters for the spindle; never needed anything separate for the records...

...i have a 5" adapter ring for 3" compact discs, though: that has seen legitimate use in all my slot-loading players, although drawer-loading players always included detents for smaller discs, and of course portable players snap directly onto the spindle...

your fidget spinner looks like it wouldn't spin very well

It's whole point in life is to spin
- that's sad :(

It literally says what it is right on it lol

It's a record adapter.

Still doesn't explain if you don't have at least some knowledge of it
- I'm just wondering how it works. I know there are different sizes, and thus different speeds that the record needs to spin at but all the turntables I've ever used had a switch for the two most common sizes. I have to assume this is for slowing/speeding up how fast it turns on a table without an adjustable speed, but I can't quite intuit how that would work.