MORE CONSISTENCY WITH ONE LENGTH: ONE Length irons are designed to make your game simpler and more consistent. Each TEC-X ONE Length iron is built to the length of a 7-iron, allowing you to use the same setup and swing for every club. Golfers using ONE Length irons have seen a 40% average increase in their Greens In Regulation (GIR) compared to variable length irons. PLAYER'S GAME IMPROVEMENT SHAPING: The X model features a slightly larger profile than the KING TEC, providing a forgiving shape that boosts confidence and offers greater stability on off-center hits. IMPROVED FEEL: HOLLOW CONSTRUCTION WITH SOFTER FOAM: The hollow body design, filled with lighter and softer foam, enhances the feel and feedback, giving you a more enjoyable experience. INCREASED SPEED AND STABILITY: PWRSHELL H.O.T. FACE & TUNGSTEN WEIGHTING: Achieve dynamic distance with a hollow body and a robust PWRSHELL insert featuring H.O.T. Face Technology, along with 70g of tungsten in the toe for added stability.