| 摘要 |
PURPOSE: A swing ball is provided to adjust the length of a line module for playing soccer and volleyball and to separate a ball by adjusting a fastening member on the line module when not in use. CONSTITUTION: A swing ball comprises: an attaching module(10); a line module(20); and a ball(30). The attaching module is attached to the wall. One end of the line module is attached to the attaching module. The ball is attached to the other end of the line module. |
