OEM Single Length Design
The Pinhawk SL (Single Length) Irons are all designed to be the same length throughout the set. In addition, the swingweight and flex are also the same.
OEM Dual Length Design
The Pinhawk Vertex Dual Length Irons are all designed to be two different lengths, with the 3, 4 and 5 irons at one length, and the 6, 7, 8, 9, PW, AW, SW at another.