New ZX Mk II Irons are a culmination of fast and pure. A pure feeling at impact, for purer strikes, and a pure sound. With tech-driven ball speed in every number, energizing every shot. An all-new design characteristic exclusive to ZX7 Mk II Irons, PureFrame enhances feel at impact by reducing unwanted vibrations. The PureFrame ridge is forged into the body of the Iron - just behind the sweet spot - as an 80% thicker portion of 1020 Carbon Steel. Strategically placed right where you strike the ball, the result is a remarkably soft yet solid strike that doesn't sacrifice any of ZX7's famous tour-caliber workability. dynamic Tour V.T. Sole helps maintain clubhead speed through impact for clean strikes across fairway, rough and sand - even if you contact the turf slightly behind the ball. A higher bounce on the leading edge prevents digging; then, a lower bounce on the trailing edge curves away from the turf, so you can still manipulate face angle for maximum workability. If you would like to customize the shafts, grips, lengths or lies give us a call or send an email to Tom@dallasgolf.com. Standard Srixon warranty applies and satisfaction is guaranteed.