With over 125 PGA Tour players having used SuperStroke technology, our patented grips help the world's best play better every week. The proof: Over 100 million won on Tour. Our parallel technology allows for even pressure in both hands, eliminating added tensions in the wrist and forearms. This helps the arms to swing free, further enhancing a pendulum putting stroke. Starting with a light-weight foam under listing, we have added a new high-tech PU material, featuring Cross Traction technology, for improved fee and tackiness. USGA approved, 1.67" diameter, 10.50" length, 90grams+/-5 and a.580 round core.