"Project X irons shafts deliver penetrating trajectory and ball flight and strike the perfect balance of unrivaled distance, stability and control for golf’s most serious players.スペックFlexTipButtLengthWeightLaunch5.0.355"".600""41.5""(1) -37.0""(PW)115gLow5.5.355"".600""41.5""(1) -37.0""(PW)115gLow5.5.370"".600""41""115gLow6.0.355"".600""41.5""(1) -37.0""(PW)120gLow6.0.370"".600""41""120gLow6.5.355"".600""41.5""(1) -37.0""(PW)125gLow6.5.370"".600""41""125gLow7.0.355"".600""41.5""(1) -37.0""(PW)130gLow"