Fidgit spinner /roller

A friend had her kids in her late 30s, one of hers is prone to uncontrollable outbursts, not a naughty kid outburst, but full on meltdowns over the slightest thing, he’s somewhere in between ADHD and Autistic, apparently the spinner keeps him calm when he starts to show signs of a meltdown. Quite clever really, I wonder how they went from being an aid to calm sufferers of ADHD/Autism to being a must have gadget?

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