Taylormade R11 iron set includes 4 thru PW. The shafts are regular KBS 90 steel shaft. The original 5 iron was lost, but has been replaced with another 6 irons that is half inch longer and 2 degrees stronger to match the lost club. This 6 iron is also equipped with KBS 90 steel shaft, but is stiff. These set is in excellent condition.