A golf club head has a body having a ball striking face, a rear opposite the ball striking face, a crown, a sole, a heel, and a toe, the body having a void defined by a peripheral edge on the sole. Foods containing organic compounds capable of forming a complex with zinc and zinc sources. Plural transverse hexagonal through holes are formed in the hexagonal surface of the handle, and plural hexagonal rods may be slidingly engaged within the through holes and mounted in the sockets.