MainFrame MainFrame is a variable thickness pattern of grooves, channels, and cavities carefully milled into the backside of the Iron face that maximizes flex at impact. This second-generation design goes even further-not just boosting COR, but repositioning mass away from the face and into the toe and sole for a lower CG. Forged Multi-Piece Construction ZX5's forged SUP10 faces are strong yet light-increasing face-flex at impact for explosive distance-while a forged 1020 Carbon Steel body absorbs vibrations for great feel. Then, high-density tungsten in the sole of ZX5's long and mid Irons adds stability on off-center shots-helping to keep speed and spin consistent-and lowers CG for improved launch. Tour V.T Sole Srixon's unique Tour V.T. Sole takes turf interaction to a whole new level of detail with a proprietary combination of sole widths, bounce angles, and notches. This technology encourages a smooth glide through fairway, rough and sand to strike the ball solidly without losing speed. Even if you contact the turf slightly behind the ball. Progressive Grooves The 3i-7i feature wide grooves, ideal for longer shots in all conditions. The 8i-AW have deeper, closer set grooves which cut through grass and debris to enhance spin on approach shots. Laser milling between each groove, on every loft, enhances friction in all conditions. The result is congruency across the set, as spin, distance, and launch window remain as consistent as possible. Club Specs Club Lofto Lieo Length Offset Hand 3 20.0o 60.0o 39.00" 4.2mm RH/LH 4 22.0o 60.5o 38.50" 4.0mm RH/LH 5 24.0o 61.0o 38.00" 3.8mm RH/LH 6 27.0o 61.5o 37.50" 3.5mm RH/LH 7 31.0o 62.0o 37.00" 3.2mm RH/LH 8 35.0o 62.5o 36.50" 3.0mm RH/LH 9 39.0o 63.0o 36.00" 2.7mm RH/LH PW 44.0o 63.5o 35.50" 2.3mm RH/LH AW 50.0o 63.0o 35.50" 1.9mm RH Shaft And Grip Details Nippon N.S Pro Modus 3 105 Steel: The N.S. PRO Modus 3 series shafts are popular with touring pros because they offer optimal performance in three key areas. Desired trajectory, accurate distances and tight dispersion. With a controlled trajectory that even surprises the tour pros, Modus 3 105 is lighter in weight to increase club head speed for longer distances, straighter shots, stronger trajectories and more consistent performance. Broadening the Nippon Shaft reputation as a light weight shaft expert, the N.S Pro Modus 3 105 has a traditional smooth bend profile that offers players a Mid Flight and Spin. Mitsubishi Diamana ZX Graphite: Developed with Mitsubishi, the Diamana ZX graphite is a mid-launch mid-spin shaft designed for players with a moderate swing tempo. The Diamana ZX's lightweight construction helps golfers generate more club speed for increased distances.The shafts stable construction helps ensure high performance and shot control for golfers of any ability. Golf Pride Tour Velvet 360: The Tour Velvet 360 features the popular look and feel of the Tour Velvet non-slip surface pattern in a 360-degree design. This grip features double-dash rings on both ends that allow for a consistent appearance regardless of shaft orientation or adjustments.