used in these areas beneficially allowing the club head designer to redistribute the u201c saved u201d weight or mass to other more beneficial locations of the club head 1 these portions of the club head 1 can also be made thinner enhancing the weight savings exemplary uses for this redistributed weight include increasing the overall size of the club head 1 expanding the size of the club head u201c sweet spot u201d which is a term that refers to the area of the face 11 that results in a desirable golf shot upon striking a golfball repositioning the club head 1 center of gravity and or produce a greater moment of inertia moi inertia is a property of matter by which a body remains at rest or in uniform motion unless acted upon by some external force moi is a measure of the resistance of a body to angular acceleration about a given axis and is equal to the sum of the products of each element of mass in the body and the square of the element 39 s distance from the axis thus as the distance from the axis increases the moi increases making the club more forgiving for off center hits since less energy is lost during impact from club head twisting moving or rearranging mass to the club head perimeter enlarges the sweet spot and produces a more forgiving club increasing the club head size and moving as much mass as possible to the extreme outermost areas of the club head 1 such.