The Max OS features an oversized, exceptionally high-MOI head designed for maximum forgiveness and a high, effortless launch, and draw-biased weighting. This setup makes it an ideal long-iron replacement for golfers who struggle with consistency and a right miss or those who could benefit from a higher ball flight. Two sole upgrades highlight the Quantum hybrid lineup, beginning with Speed Wave 2.0. Like its predecessor, Speed Wave 2.0 enhances ball speed and launch consistency by positioning tungsten weight low and forward in the head. However, the new design also allows greater face flex, increasing energy transfer and speed, especially on low-face strikes. The second refinement to Callaway's flagship hybrid lineup is the new and improved Step Sole. In addition to reducing turf interaction for cleaner, more efficient strikes, the latest design's reshaped heel enhances stability through impact, ensuring greater control and accuracy off the turf. Callaway Quantum Max OS Hybrids Features: Oversized, draw-biased shape with high-MOI is designed for maximum forgiveness and an easy launch (perfectly blends with Max OS Irons) Speed Wave 2.0 positions tungsten low and forward for faster ball speed and a high, consistent launch. The new design allows for additional face flex, boosting energy transfer for faster speeds, especially on low-face strikes New Step Sole Design reduces turf interaction for consistent center-face contact. A reshaped heel adds stability at impact, helping to keep the face square for greater control Next Generation Ai-Optimized Face Design optimizes speed, spin, launch, and accuracy across the face using advanced Ai modeling Heel-toe weighting increases stability, promoting straighter, more accurate shots OptiFit4 Hosel features independent loft (up to +1�/-1�) and lie (up to +/- 2�) adjustability, offering 7 configurations to fine-tune launch angle and shot shape Stock Shafts: Mitsubishi Vanquish PL, Project X Denali Frost Silver Stock Grip: Lamki