| 摘要 |
In a golf ball having a spherical surface with numerous dimples thereon, the dimples have a diameter of 2 to 6 mm and number in all from 250 to 330, of which at least 60% are large dimples having a diameter of at least 4.5 mm. The volume of space in a dimple below a planar surface circumscribed by an edge of the dimple, summed for all the dimples on the surface of the ball, is from 320 to 360 mm<SUP>3</SUP>. The golf ball rises well when hit and is easy even for an inexperienced golfer to hit.
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