| 摘要 |
The putter head includes a putter head member formed of a first material having a given weight per unit volume. The putter head member has an outer side wall which includes a top portion, a bottom portion and first and rear second ends with an axis extending between the first and second ends. An aperture is formed into the putter head member between its first and second ends parallel with the axis and located closer to the bottom portion than to the top portion. A rod is located in the aperture. The rod is formed of a second material having a weight per unit volume greater than that of the first material. An aperture is formed in the top portion along a plane parallel with the axis for attachment of a shaft.
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