I came across these 2 different balls, the Nittaku 3-star & Nittaku Premium 3-star. Both has Nittaku-Japan printed on the ball.
One is made in China and the other is made in Japan. Therefore one is cheaper than the other.
No need to guess which one as I was told that when Nittaku from Japan was manufacturing its balls, there are one company in China also producing the balls with a slight different spelling in Nittaku. When Nittaku from Japan found out, rather than facing some losses and competition as the one made in China also quite popular, they decided to join together but have 2 different version of Nittaku, ie Nittaku 3-star (made from China) which is lighter (but heavier than most 3-star balls like DHS or Doublefish) and Nittaku Premium 3-star(made in Japan) which is heavier, more durable and better quality than others.



