| http://www.w3.org/ns/prov#value | - From such points of view, the volume of head 1 is preferably at most 470 cm3, more preferably at most 460 cm3.In consideration of swing balance, rebound property, swing easiness or the like, it is preferable that the weight of club head 1 is at least 180 g, especially at least 183 g, more especially at least 185 g, and it is at most 220 g, especially at most 215 g, more especially at most 213 g.Th
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