The SS2R Squared profile grip is a truly revolutionary design. Its solid rubber underlisting provides good back-weighting and excellent feedback. The proprietary PU outer skin and Cross-Traction pattern are the same as found on all other SuperStroke models. The SS2R Squared 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 which produces a more stable, consistent, and reliable stroke.