Jangsu-wang) Finger joint pain, solve it with a Poli-o hand massager!

Sometimes, my finger joints ache and I feel pain.
I don't particularly mop the floor or engage in activities that strain my joints.
Sometimes I experience pain ㅠㅠ
So, it's difficult to do sports like badminton or squash that require holding a racket.
Every time I experience pain in my finger joints, I use the PoliO hand massager.
I wondered if this would be refreshing.
It also has a heating function, and surprisingly, it's very cool!
Watching TV and doing one hand at a time is really refreshing and enjoyable.
Charging can also be easily done via USB, so it's really convenient :)