抄録
Rubber covered softball was developed in Japan in 1950. Similar to rubber covered baseballs, it was first invented to substitute leather covered softballs. Since then, rubber covered softballs have been widely recognized in Japanese market for its special characteristics such as durability, safety and usability.
In this article, the history of rubber coverd softballs in Japan is first described. Then the status of the current products and the typical manufucturing process of current rubber coverd softballs are introduced. The author would like to belive the great possibility of rubber coverd softball for its low enviromental load and good durability for playing in developing countries.
