Mizuno JPX 921 HOT METAL PRO iron set, steel, 5-piece set. JPX921 Hot Metal Pro - Model: JPX 921 HOT METAL PRO - Type: Iron Set - Quantity: 5-piece set - Brand: Mizuno - Material: Steel Shaft: Dynamic Gold 105 R300 Grips: Iomic, still usable This set is perfect for those who find Dynamic Gold S200 or Modus 105 a bit too challenging. Apparently, YouTube reviews also recommend R300 for the 105 shafts. Thank you for viewing. There is some rust on the shafts, but it's not very noticeable; you can see a few spots if you look closely. Overall, the condition is good. Please understand that this is a used item, and no returns or exchanges are accepted. I'm short on cash, so I'm pricing it lower than the market value. First come, first served.