Designed for professionals and advanced amateurs, the new MODUS³ steel iron shaft series was developed in response to the specific requests of PGA Tour professionals. Nippon Shaft employed its renowned, world-class steel shaft technology to focus on three critical areas: achieving desired trajectory, delivering proper distance and assuring pin-point accuracy. The resulting N.S. PRO MODUS³ is remarkable for its unique bending profile. Even the most challenging professional courses can be attacked from setup to finish with confidence, thanks to the optimized trajectory, distance and direction. This outstanding shaft enables true power shots with pin-point accuracy in all conditions..