This is a brand new set of Piranha Golf Performance Cavity Iron heads, .370 hosels.
I have a set of these waiting for me to decide what shafts to use in them.
My friend Jim Battin with Teestar.com has 2 more sets like mine he wants to sell. They are very similar to the Infiniti KO irons ftom a few years ago. Infiniti used 431 ss, and Piranha uses 301 carbon steel per their website.
5-pw still available.