| 摘要 |
A training ball includes a ball body having an overall outer ball surface, and two first and second ball halves which cooperatively define the overall outer ball surface and which are divided by a first imaginary plane that substantially passes through a center of the ball body. At least one of the first and second ball halves has an indented surface region extending inwardly of the overall outer ball surface, and a grip unit which spans the indented surface region. The grip unit has an inner grip surface facing and spaced apart from the indented surface region, and an outer grip surface opposite to the inner grip surface and forming a part of the overall outer ball surface. The inner grip surface and the indented surface region define therebetween a space adapted for extension of fingers of hands thereinto.
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