Game ball, has inflated or inflatable elastic hollow body, which is conically formed, implemented in cubical shape and rounded in its edge and corner area, and outer casing whose inner area is filled with elastic material

摘要

The ball has an inflated or inflatable elastic hollow body, which is conically formed, implemented in a cubical shape and rounded in its edge and corner area. An exterior shell is composed of leather or plastic, in which an inflatable or air keeping inner casing is used. An inner area of an outer casing is filled with an elastic material.