Callaway's Big Bertha Diablo Hybrids provide the power and attitude that give golfers the confidence to pull off any shot from anywhere on the course. Callaway Golf designers have incorporated a variety of innovative technologies like the Dual Runner Sole and high MOI head designs to give golfers more distance and increased accuracy whether they're crushing it off the tee or firing at the flag. Dual Runner Sole This innovative sole design ensures cleaner, more versatile turf interaction and helps lower the leading edge to make the sweet spot more accessible for various skill levels. High MOI Head Design The increased perimeter weighting in the all-stainless steel clubhead helps raise the MOI for greater stability and forgiveness, and provides heightened trajectory control. VFT Technology Variable Face Thickness (VFT) maximizes ball speed and perimeter weighting for increased distance and forgiveness. S2H2 Design Short Straight Hollow Hosel (S2H2) technology increases discretionary weight by removing it from the hosel and repositioning it in the perimeter of the clubhead to add stability.