The PRO is our signature design, the model most professionals choose. It's a classic anser look. With every custom milled putter from SIK Golf, you can rest assured that the look, sound, feel, and most importantly, the performance meet and exceed the standards of touring professionals. The head weighs 370 grams with a Plumber's neck (45deg toe-hang), 355g with a Double Bend (Face-Balanced), 360 grams with a Slant neck (70 deg toe-hang), or 360g with a Swept Neck (60 deg toe-hang).