Patent ID: 8876623

Claim:
A golf club head comprising: a front body member having a striking surface, a striking surface frame, a hosel, and a substantially enclosed main body cavity; and a partially enclosed hollow rear body member detachably attached to the front body member, wherein the detachable attachment of the hollow rear body member to the front body member forms a golf club head having a substantially enclosed secondary body cavity formed between the hollow rear body member and the front body member, and wherein the detachable attachment provides the capability to detach the hollow rear body member from the front body member without damaging either of the members, and wherein the hollow rear body member is selected from one of a plurality of hollow rear body members having different external shapes; and wherein each hollow rear body member selected from the plurality of hollow rear body member has a different combination of center-of-gravity and moment-of-inertia characteristics resulting in a different performance characteristic of the golf club head.