The Ai-Dual #1 putter pairs an Ai-Dual insert with a new, deeper and more aggressive Frd Groove. Its 19 degree slope works with the dual layer design to enhance forward roll across the face for steadier speed. The SL 90 shaft provides a balanced, responsi

Details The Ai-Dual #1 putter pairs an Ai-Dual insert with a new, deeper and more aggressive Frd Groove. Its 19 degree slope works with the dual layer design to enhance forward roll across the face for steadier speed. The SL 90 shaft provides a balanced, responsive feel suited to players who prefer a classic blade shape with modern roll technology.