Swing with increased confidence, thanks to higher launch and ball speed performance in the Aero X irons. 431 Stainless Steel with Heat Treated Face CT-Face Design Optimum CG Position 1-Year Guarantee / Fujikura Vista Pro 50 Graphite Shafts / Lamkin Crossline Grips The Aero X are constructed from 431 Stainless Steel with a heat treated face. With a CT-Face design which promotes a fast ball speed for added distance performance. The CG position is located on the irons to produce a higher launch angle. Combined with a forgiving face profile and offset angle to helping to achieve center strikes. Specifically fitted with a low kick point shafts to further increase launch angle and carry distance.