The Mizuno MP-18 Split Cavity irons were designed in partnership with the Mizuno Tour staff to be exactly what better players ask for out of a modern, compact cavity set. A slightly wider, cambered sole makes the MP-18 SC irons more playable than the muscle-back, however, the size and shape are only a fraction larger, making it easy to blend into a combo set. The irons feature 1025E carbon steel with a six times tighter tolerance than industry standard for greater purity. The enhanced Grain Flow Forging process increases grain density in the impact area for the ultimate soft, solid, and consistent feel. The irons also feature Harmonic Impact Technology to deliver ideal impact feel and feedback while the satin nickel chrome finish gives the clubs an elegant, yet durable non-glare finish.