Progressive Performance - The CB/MB combo flow-set prioritizes precise shot-making in your short irons with added stability and forgiveness in the long irons. Ensuring the highest level of performance as you progress through the bag. Phenomenal Feel & Feedback - 5-Step 1025 forged carbon steel irons provide exceptional feel and feedback with every strike. Players Cavity and Muscleback Combo-Set - The cavity back and muscle back designs feature compact head shaping and thinner top lines to promote workability and precision. Superior Shot-Making & Control - Consistent command over trajectory and shot shape for clinical precision and control 5-STEP FORGED - While traditional irons utilize a 4 step forging process, the KING irons add a fifth step to deliver exceptional soft feel that better players demand. Each iron is crafted and 5-step forged from 1025 carbon steel for a more uniform grain structure and precise shaping. FLOW SET - Available in a combo set that flows from a more forgiving muscle cavity back in the 4-6 iron, to a more workable muscle back in the 7 through Pitching Wedge. TOUR INSPIRED SHAPING - The KING CB/MB irons feature the most compact shapes in the KING lineup, and are built with attributes that better players typically desire including thinner toplines for aesthetics, minimal offset for control, thinner soles for precise turf interaction, and shorter blade lengths for enhanced shot-shaping ability.