UST Mamiya Recoil 660/680 SC Graphite Iron Shafts - A revolutionary technology that will change how you think about iron shafts. UST Mamiya’s new recoil iron shafts are a game changer. In the past, heavy weight graphite iron shafts felt dead and stiff. With UST Mamiya’s exclusive recoil™ technology, we have brought feel back into the shaft, while allowing players to hit a wide range of shots that result in better distance control and pin seeking accuracy. By positioning over 19 different layers within the shaft, we were able to create a design that outperforms the best steel shafts in the market. Features: Multi-layer design creates unmatched consistency in a lightweight iron shaft. Recoil™produces a responsive feel, allowing players to hit a wide variety of shots. 660 produces a medium to medium/high ball flight. 680 designed to produce a medium ball flight. .355" taper tip options available via special order - please call 800 848-8358 Trimming Instructions