Mizuno JPX 850 Forged Iron Set includes clubs 4-PW. The Set features True Temper XP 115 gram S300 shafts with Golf Pride New Decade Multi Compound grips. The Set is standard length and the 7-Iron is 36.75" inches. This model was released in 2014. This model has grain flow forged 1025 BORON that is 30 percent stronger material than carbon steel, allowing for a thinner face and longer distance while delivering soft, solid, consistent feel.