Product Overview: Diablo Tour 22 Golf Balls The Callaway Diablo Tour Golf Balls have HEX Aerodynamics to reduce drag and produce a penetrating ball flight, and a Power Core for distance and greenside control. The soft Ionomer cover is designed for shot-making, and the inner cover provides low driver spin for long, accurate shots. Features: Power Reaction Core is larger for improved feel and outstanding distance. Advanced DuPont® HPF™ Inner Cover increases ball speed while lowering driver spin for long, accurate shots. HEX Aerodynamics® replaces conventional dimples to reduce drag and produce a more penetrating ball flight in various weather conditions. Soft Ionomer Cover improves short game control.