Cobra King F9 SpeedBack Iron Set

Low CG SPEEDBACK™ Sole: Mass is added low and back using a belt of steel that wraps around the back of the iron, creating a lower and deeper CG that maximises ball speed, launch and carry distance.
High MOI Design: Shaping improvements increase MOI by up to 10% in the long irons, creating more stability through higher inertia that results in substantial improvements in ball speed, distance, forgiveness, and even accuracy.
Forged E9™ PWRSHELL™ Face: E9™ face is 3 grams lighter and features thin, 1.8 mm pockets in the upper heel and toe that expand the SWEET ZONE™ area on the face.
Internal Speed Channel: An all new 1.2 mm internal Speed Channel that absorbs and returns more energy to the ball for faster ball speeds and increased launch angle.
Co-Molded Medallion: A 3-piece multi-material medallion combines Aluminum, a soft Thermoplastic Polyurethane (TPU) and Acrylic foam that improves sound and feel.
CNC Milled Face and Grooves: CNC precision milling delivers more accurate lofts and allows for tighter tolerances on face roughness and groove shaping to optimise spin and trajectory control.
Progressive Spin Technology™: CNC milled V-grooves in the 4-7 irons improve distance by reducing spin for increased distance and flight time, while U-grooves in the 8-PW optimise spin for improved control and accuracy.
Progressive Hosel Lengths: Shorter hosel lengths in the long irons position the CG lower to promote higher launch, while progressively taller hosel lengths in the short irons and wedges raise the CG progressively to promote a lower, more controlled ball flight.