PURPOSE: A baseball is provided to enable a beginner to make a high quality baseball by sowing baseball cover at a constant interval. CONSTITUTION: A baseball is manufactured as follows. Both ends of a thread having a predetermined length are inserted into a pin in order to be one strand. A baseball cover is sewed to be crossed in an X-character shape when the thread passes the pinhole. When the thread secondly passes through in the pinhole, the baseball cover is sewed to be crossed in a double X-character shape.
