By redistributing the weight of 15 g from the thick part of the muscle back to the appropriate part inside the head, we have evolved into functions such as increasing the size of the head, increasing the width of the sole, and lowering the center of gravity. We expanded the impact spot by toe heel weight distribution, and attained high level of operability and power like muscle back. It is the shape of a new muscle back which can draw out the skill of the player without difficulty.
Material: Soft iron (S25C)
Process: Precision forging WDD Accurate Forged
Finish: W nickel chrome satin finish