620 CB 3-PW Iron Set w/ Project X LZ Steel Shafts TOUR PROVEN The new 620 CB irons stay true to everything players have come to trust from this classic model, with distinct refinements that make them better than ever. The iron is a sleek, true 1-piece forged cavity back that delivers a traditional players look and feel. Proof that posting a number never gets old. Reduced offset and topline for the ultimate players look Progressive blade length for optimized play throughout the set Co-forged tungsten in 3- and 4-iron for improved balance TOUR-refined sole for improved turf interaction