The Mizuno MP-25 Forged Iron Set (4-PW, KBS Tour 110g R-Flex Steel) is a classic player's iron from Mizuno, known for blending buttery feel, workability, and surprising forgiveness using Grain Flow Forged 1025 Boron technology and a hidden Micro-Slot, offering distance without sacrificing control for mid-to-low handicappers seeking a confident-looking iron. These irons feature KBS Tour 110g steel shafts in a Regular (R) flex, providing a consistent feel and launch, and are a popular choice for golfers wanting more help than a pure blade but still demanding premium feel and precision.