Callaway Big Bertha Warbird Driver
The Callaway Big Bertha Warbird driver uses the sole design of a utility club to help increase forgiveness. The internal weighting that the Warbird sole design allows, results in increased perimeter weighting to maximize Moment of Inertia. This high MOI keeps the club from twisting on impact to give you straighter, more accurate drives--even on those not-so-perfect shots.