Paradym Irons Industry-leading A.I. face technology is applied to a high-strength Forged 455 face , creating Callaway's most powerful forged iron face ever Each face is uniquely optimized for more speed, higher launch, and increased spin consistency. The all-new Hollow Body design features Speed Frame construction for added stiffness to the body and support for the high-strength Forged 455 Face Cup. This unique construction is the catalyst that stabilizes a thinner face for incredibly fast ball speeds. A forged face and patented Urethane Microspheres deliver the ultra-soft feel and premium sound that discerning players demand. Up to 67g of external and internal tungsten weights are placed precisely to enhance launch conditions and improve speed on mis-hits. This increase in forgiveness is the difference between hitting the green and coming up short. The Paradym iron features a players look in a forgiving package. A pre-worn leading edge is designed to cut through the turf more efficiently for even more forgiveness.