"The PGX Irons are the newest release from Pinemeadow Golf. The PGX Irons are cast from 431 Stainless Steel and utilize a wide ""Power Chamber"" behind the face facilitating a trampoline effect at impact. When you combine the ""Power Chamber"" with the wide sole design the result will be a higher ball flight with considerable distance. The mirror finish and the impact dampening medallion make this club look just incredible."