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The Big Bertha Driver is a total performance driver. Add longer, straighter shots to your game by utilizing the Adjustable Perimeter Weighting slide located near the rear of the club. Experience a higher moment of inertia on off-center hits, resulting in more forgiveness.
The Big Bertha Alpha Driver from Callaway® offers the ability to change horizontal center of gravity through movable heel and toe weights. Unlike the standard Big Bertha Driver, the Alpha allows you to vertically change the center of gravity position with the new Gravity Core.
The change can reduce backspin by 300-600 revolutions per minute. In the past such drastic reductions were only possible by altering the club's loft.
The Big Bertha and Big Bertha Alpha are both constructed with a Hyper Speed Face – the largest and lightest face sold by Callaway. Expect longer shots, more consistently. To perfectly complement the new designs, each club features Mitsubishi Fubuki shafts – commonly played with on all professional tours.