It's an EDC Spinner
Aka "Fidget Toy"...
It's mostly for EDC Folks, but it's primarily used to relieve stress and/or anxiety...
You can mess with it as opposed to constantly clicking pens or tapping the desk or any time you're feeling fidgety
I think this has the answer.
@Litos, what are those thingamajigs that you have?
I think it's actually a thingamabob or a doohickey. Lol. See above quote.