The black-based Yin-Yang motif comes here in the larger 4 cm size, designed for more experienced hands. The half-centimetre difference in diameter compared with the 3.5 cm standard version creates a clearly noticeable increase in weight and mass, which calls for a different movement during practice.
Why step up to the larger size
If you have been using the 3.5 cm standard size for weeks or months and would like to move on, the 4 cm set is your next step. The greater mass engages more muscles of the hand, and the movement also becomes more deliberate.
Yin-Yang in its clean form
The black-and-white Yin-Yang motif is one of the most distilled Eastern symbols. On the larger surface the shape of the two drops comes through even more clearly — the piece is not only an exerciser but also a decoration.
The difference in the inner chime
The 4 cm size has a larger inner space, so the tone is a shade deeper and fuller than that of the 3.5 cm version. The chime stays soft — never intrusive.
The origin of the tradition
Chinese tradition traces the use of these balls back to the era of Emperor Jia Jing during the 16th-century Ming dynasty. Stimulating the palm's energy points is connected to the flow of Qi — we share this as cultural tradition, not as a medical claim.
A practical tip
Start by rolling the two balls together, touching each other, in one palm. After a few days, once the movement becomes more confident, try rolling them separated. If your fingers grow tired, it is worth returning to the 3.5 cm standard size for a while.
Packaging
The pair arrives in an ornate Chinese gift box.