Callaway Golf Warbird Plus Golf Balls (12-Pack) Performance golf ball with new, high power core; high resiliency rubber formulation provides maximum distance with softer feel than previous generation Durable ionomer cover design generates long drives and provides even longer playability Unique HEX aerodynamics replaces conventional dimples to reduce drag and promote stronger, more penetrating ball flight that cuts through the air Two-piece construction, 1.68-inch ball, 45.6-gram weight, 0.56-inch thick ionomer cover, HEX aerodynamics with 32 geometries, and 1.57-inch diameter polybutadiene core Includes limited two-year manufacturer's warranty