An iron set consists of a series of typically 6 to 8 sequential golf clubs ranging in specification from shorter lengths and higher lofts producing higher trajectory and shorter distance, to longer lengths and lower lofts producing lower trajectory and longer distance. The iron set provides a range of trajectory, spin and distance required for a wide breadth of golf shots needed in a typical round of golf from shorter shots into and around the green to longer shots from the fairway and tee box. Iron sets are available in various set compositions, with 3-PW or 4-PW,GW being a common iron set composition. With the increased availability and popularity of hybrid fairway wood golf clubs, iron sets are increasingly available with hybrid golf clubs replacing the long irons (typically the 3 and 4 irons). Iron sets are constructed of varied materials, or combinations of materials, and are engineered with different design features to maximize distance, playability and accuracy from the playing surface, as well as the tee. Early iron sets were constructed from forged steel, while current-day iron sets are cast, forged and assembled from advanced, high performance steel, titanium and graphite materials. Today’s iron set manufacturer’s produce and sell iron sets in varied set compositions, lofts, and shaft types, lengths and flexes to optimize performance for all types of golfer launch conditions. The more popular iron set brands include; Ben Hogan iron sets, Callaway iron sets, Cobra iron sets, TaylorMade iron sets, Mizuno iron sets, Nike iron sets, and Titleist iron sets to name a few.