JUMBOMAX ST 1.2 PUTTER GRIPSST 1. 2 is what we call comfortably oversized. It has a straight, non tapered profile that helps golfers stabilize their hand 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. Reduce Tension: Straight, non tapered profile promotes a tension free putting stroke. Improve Consistency: Moderately oversized to help stabilize the hands. Boost Feel: Poly Tour outer