Callaway Big Bertha OS Iron Set (4-PW)

CALBBOSIS-R-G-A-4P

The Callaway Golf Big Bertha OS Irons feature:

  • Next-generation 360 Face Cup technology elevates clubface COR closer to the USGA limit to produce even faster ball speeds and more distance.
  • Tungsten-Loaded Standing Wave technology in the sole lowers the center of gravity to promote a higher launch angle for longer carry and more ball speed on hits low on the face.
  • Progressive Center of Gravity technology entails moving the CG location progressively lower in each head from the highest-lofted to the lowest-lofted, promoting higher launch and long carry in the long-irons and increased control in the short-irons.
  • Set Configuration: 4-PW (7 Clubs)

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