Exercise gadget (GL4)

Waist trainer. A spinny, textured disc. Roughly the size of a diner plate.

I have no idea *how* use it or how it is meant to make me look like a supermodel .

Chucking because it is utterly pointless.
But someone else is welcome to give it a go

Fair Chance Policy: I’ll wait before choosing a recipient to give more people a chance to reply.