Assassin NANO LD Lite 70 Gram Distance + Accuracy Graphite Golf Iron Shafts .370 41" - A,R,S or X Flex Accuflex Assassin Iron Shafts are Engineered for Longer, Straighter Iron Shafts than Ever Before New NANO Weaving provides strength & control to prevent clubhead twisting on impact Unique design transfers More Energy to the ball than ever before Shot dispersion is Narrower, and Distance is Improved Warning: This iron shaft is a Monster. Outperforms the $29.99 and up OEM Iron Shafts.