TSR1 OPTIMIZED LIGHTWEIGHT DISTANCE Bring more speed and stability to your hybrid game. For moderate swing speed players, TSR1 Hybrids feature a larger profile head and an optimized, lightweight design that increases inertia without increasing swing weight. Benefits Maximized Launch & Distance Exceptional Forgiveness Enhanced Stability Confidence-Inspiring Size & Shape Features Optimized Lightweight Configuration SureFit Adjustability Includes matching headcover. Adjustment wrench not included.