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