A putter-type club head (20) having a body (22) that is preferably composed of a material having a density ranging from ranging from 2.0 g/cm.sup.3 to 3.0 g/cm.sup.3. and a plurality of mass members (56, 58 and 60). The body (22) has a plurality of mass ports (50, 52 and 54) for placement of the plurality of mass members (56, 58 and 60) therein. The body (22) preferably has a heel aperture (34) and a toe aperture (36).

 
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> Rubber composition for golf ball

~ 00363