Description SUPERB PUTTER GRIPS JUST FOR YOU THE ST 1.2 … COMFORTABLY OVERSIZED ST/1.2™ is what we call “comfortably oversized.” It has a straight, non-tapered profile that helps golfers stabilize their hands so they can sink more clutch putts. With the ST/1.2, golfers can relax their grip pressure and pay attention to what matters: line and speed. THE ST 1.3 … AS BIG AS IT GETS The ST/1.3™ is the largest putter grip we make. With a diameter of 1.3-inches and a straight, non-tapered profile, the ST/1.3 maximizes surface area to help golfers reduce their grip pressure and stabilize their hands. While the smaller ST/1.2™ has a rounded-back design, the ST/1.3 offers golfers a more square shape that helps fill up their hands and aids in consistent hand placement.