This spinner fad is really getting out of hand. In a way it reminds me of the hype over Pogs in the mid-90s. Remember those? At least back then the kids couldn't make dozens of bad YouTube videos about them.
From what I can tell, it's four skateboard bearings merged in a plastic shell. They're supposed to calm people with ADHD, Asperger's, and all that other fun crap I have.