| 摘要 |
A golf ball includes a core made from a rubber composition containing polybutadiene as a main rubber component and also an organic sulfur compound; and a cover made from a cover material mainly containing an ionomer resin composed of an Li ion neutralized type ionomer resin and a Mg ion neutralized ionomer resin, and also an inorganic filler having a specific gravity of 3.50 or more. A flexural amount of the core, measured by applying a load of 980 N thereto, is in a range of 4.0 to 5.5 mm. A specific gravity of the cover material is in a range of 1.020 to 1.110, and a Shore D hardness of the cover is in a range of 55 to 65. Such golf ball exhibits high durability and very high resilience.
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