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The King AI Series Irons (Callaway Big Bertha B21 clones) are engineered with a heavier sole, producing a low ball spin and high flight trajectory. The King AI irons feature stainless steel construction, a generous cavity back design plus heel/toe "notch" weighting for maximum game playability. These new irons also offer maximum perimeter-weighting and a high moment of inertia for ultimate shot-shaping control. The low center of gravity creates a higher launch angle which produces longer shots and feel at impact.
Compare to: Callaway Big Bertha B21
The King AI Irons are engineered with a heavier sole, producing a low ball spin and high flight trajectory. The low center of gravity creates a higher launch angle.
LOFT
LIE
WEIGHT
OFFSET
Material: Stainless Steel
Hosel Diameter: .370
Finish: High Polished
Ferrule: Required