Patent ID: 7163470

Claim:
A golf club head comprising: a body comprising an aft-body with a face component attached to an open front of the aft-body, the face component having an opening, the body having a hollow interior, the face component composed of a magnesium material and the aft-body composed of a non-metal material; a striking plate insert attached to the body over the opening of the face component, the striking plate insert composed of a stainless steel material and having a density greater than that of the body; and a weighting member attached to the body, the weighting member providing weighting at least at a rear portion of the body, wherein the golf club head has a front wall, a center of gravity located less than approximately 1.7 inches from an exterior surface of the front wall, the golf club head has a moment of inertia Ixx about the X-axis through the center of gravity in the range from 1600 g-cm 2 to 3100 g-cm 2 , a moment of inertia Izz about the Z-axis through the center of gravity of greater than 3000 g-cm 2 and a moment of inertia Iyy about the Y-axis through the center of gravity in the range from 2000 g-cm 2 to 4000 g-cm 2 , and a robustness efficiency parameter of less than approximately 0.410.