Golf club head with ball speed control

A golf club head comprising:

• a striking face having a front surface configured to strike a golf ball and a rear surface opposite said front surface;
• a periphery portion extending rearward from said striking face and including a sole, a topline opposite said sole, a heel side, a toe side opposite said heel side, and a back portion extending from said sole to said topline and from said heel side to said toe side;
• a hosel configured to receive a shaft, said hosel located on said heel side;
• a cavity formed between said periphery portion and said striking face;
• and
• a damping element positioned within said cavity,
• wherein said damping element includes a front portion made from a first material which contacts said rear surface of said striking face, and
• wherein said damping element includes a rear portion made from a second material,
• wherein said first material is different than said second material.