FST Pro 115 Stepless Steel Iron Shafts .370 Tip – A/R & S/X Combo Flex Options
FST Pro 115 Stepless Steel Iron Shafts. 370 Tip – A/R & S/X Combo Flex Options Single or Set. The reduced weight allows builders to pair these shafts with lower-CG heads or slightly heavier heads without raising total club weight.