The golf ball 1, wherein the second outer surface hardness is {HEAD ~ about 40 Shore D} to {TAIL ~ about 54 Shore D} 
to
The golf ball 1 , wherein the second outer surface hardness is { HEAD ~ about 40 Shore D } to { TAIL ~ about 54 Shore D }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL