FST Pro 115/125 Stepless Steel Iron Shafts .370 Tip A/R & S/X Combo Flex
FST Pro 115 Stepless. 370 Steel Iron Shafts FST Pro 125 Stepless. 370 Steel Iron Shafts FST Pro 115 Trim Chart FST Pro 125 Trim Charts Weight (grams) 115 115. Flex A/R Combo S/X Combo. Flex S/X Combo.