Well, OK, you can give the correct answer too if you like.

Nobody got it 100% right, but there were some very good guesses that got aspects right.

• @LadyButterfly@piefed.blahaj.zone partially identified it as “…some kind of hair styling contraption”.
• @rozlav@piefed.blahaj.zeone said it was a “head massage device”.
• @SnokenKeekaGuard@lemmy.dbzer0.com said it was one of those “head scratchers that make you roll your eyes into the back of your hea[d]”.

It’s a comb for people with very thick, coarse hair (like the sort that most Chinese people have) that’s also intended to massage the scalp (sold as massaging your “meridian points” here). So each of the above users got some aspect of it right.