The C-Groove Marilyn model is a mallet-style putter made of 304 stainless steel. It features a large cavity-back head that is face-balanced and perimeter weighted. Whether struck dead center, a millimeter or even a quarter inch off center, the C-Groove putter rolls the ball sooner, for more consistent length and more consistent direction. That translates to more putts made, no matter the circumstance, no matter the pressure.