Cobra King F8 Irons – Graphite KING F8 Variable and ONE Length irons are equipped with COBRA CONNECT. Automatic shot tracking technology Powered By Arccos. The first truly smart set. It seamlessly records and analyzes your shot data in real time to help you make smarter, data-driven decisions and shoot lower scores. Technology proven to improve your game by up to 5 strokes. It's not just the future of the irons game, it's the future of the game. Period.FORGED PWRSHELL – WITH E9TECHFeaturing COBRA's patented E9 Technology, an all-new forged PWRSHELL face construction delivers driver-like speed and distance.CARBON FEEL TECHNOLOGY100% carbon fibre medallions provide exceptional sound and feel, never before found in a distance iron.GOOD VIBRATIONS.Studying vibrational analysis, COBRA engineers discovered the use of carbon fibre combined with an improved clubhead construction damps vibrations resulting in a softer, yet more solid feel.FIRST SMART SET. LOWER SCORES.Golf's most advanced technology, COBRA CONNECT, Powered By Arccos features electronically enabled grips in each iron. Detailed stats are recorded automatically, allowing golfers to access an in-depth analysis of their game using the COBRA CONNECT/Arccos 360 app on their Smartphone.TAILORED PERFORMANCE.COBRA's patented TECFLO Progressive Set Technology utilizes different clubhead constructions that deliver perfected trajectory and feel from the long irons to wedges.GET BETTER. FASTER.Leverage the power of data to take your game to the next level. Arccos 360™ users improved their handicaps 36.4 times faster than the average golfer.TOUR ANALYTICS IN YOUR POCKET.COBRA CONNECT analyzes every aspect of your game, while providing you with advanced GPS distances to any point on the course so you can make smarter shot decisions.ELIMINATE THE GUESSWORK.Know true distance averages for every club in your bag as well as your strengths and weaknesses so you can hit more greens and lower your scores.SEAMLESS TECHNOLOGY.Lightweight COBRA CONNECT sensors are seamlessly embedded at the end of each grip to ensure comfort during the swing, without affecting weighting or performance.OPTIMIZED CENTER OF GRAVITY.Variable hosel lengths promote optimized launch, speed and forgiveness through the set. Lower profile long irons with shorter hosels lower the CG for increased launch and forgiveness.Progressively taller hosel's in the mid to scoring irons raise CG for improved control and accuracy on approach shots.MILLED GROOVES. SPIN REDEFINED.CNC milling delivers more precise groove structures resulting in optimal spin and trajectorycharacteristics for the long irons, mid to scoring irons and wedges.