The Great Big Bertha Hawk Eye Driver combines the strength and light weight of an oversized titanium clubhead, complemented by a Tungsten Gravity Screw to dramatically lower the center of gravity. The Pro Series has repositioned the Tungsten Gravity Screw for more natural weighting and is 10 grams heavier than the standard Hawk Eye Driver. The Great Big Bertha Hawk Eye Pro Series Driver head size is 250cc.
Note: The Hawk Eye Pro Series line of clubs includes only drivers. Hawk Eye Pro Series fairway woods were never produced.