This Callaway Golf product incorporates what is known as fusion technology. This particular technology shifts and fuses the weight of the driving head of the driver to compensate for the type of swing that the golfer is experiencing. This driver is known as the Big Bertha FT 3 fusion driver and there are three different types of this Callaway Golf driver to choose from. Specifically, the driving head of these three types of Callaway Golf drivers in this line each weigh 44 grams. The differe

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