Superstroke USA Ryder Cup Putter Grip with Counter Core Flatso 1.0 The FLATSO features a revolutionary pentagonal profile and utilizes our patented No-Taper grip design, which promotes even grip pressure, eliminating added tension in the wrist and forearms. This helps the arms to swing freely, further enhancing a pendulum putting stroke. This patented pentagonal shape allows for increased repeatability and consistency due to its wider flat-front and multiple edges. DIAMETERLENGTHWEIGHTCORE1.1010.5085g0.58 Mid Slim 2.0 The Mid Slim 2.0 came directly from Tour players requesting a size between the Ultra Slim 1.0 and the Tour-favorite Slim 3.0. The Mid Slim 2.0 utilizes our patented No-Taper grip design, which promotes even grip pressure, eliminating added tension in the wrist and forearms. This helps the arms to swing freely, further enhancing a pendulum putting stroke. The Mid Slim 2.0 produces a more stable, consistent, and reliable stroke. DIAMETERLENGTH WEIGHTCOR.