The Mizuno JPX 900 Tour iron set is the perfect combination of Mizuno’s pure feel and enhanced forgiveness with their new club head framework. These irons feature a tour inspired design and are made from Grain Flow Forged 1025E mild carbon steel. To get the most out of the 1025 mild carbon steel material, the JPX 900 Tour irons were equipped with Power Frame Technology in the compact club heads. This technology makes the cavity backed irons play like a blade, while still being extremely forgiving with mishits due to the strategic weight dispersion. The top lines are thin and the soles are narrow, making these irons workable for levels of golfers.