HEAD Graphene 360+ Radical 160 Fast swingers who need a racquet that can handle high speeds should try the Head Graphene 360+ Radical 160! Graphene 360+ technology combines energy transfer with innovative spiralfibers to create a clean feel at impact. Add more strength to each shot with HEAD's Inner Grommet System, which allows optimal stiffness in the racquet's throat. If you're looking to unleash maximum power on the courts, take a swing with the HEAD Graphene 360+ Radical 160! Racquet Technology PWRAIL technology: Advanced beam cross section in the racquet's throat increases torsional stiffness to deliver impressive power and pinpoint control. Adaptive Fan Pattern (AFP): Allows you to customize your string pattern to match your game. Specially designed bumper guard lets you choose between the traditional 16 main pattern for power, control and durability, or a 12 main pattern for a softer feel. IGS™ Inner Grommet System: Eliminates the exterior grommet holes to deliver optimal stiffness without extra weight. Each tube is lined with friction-reducing polymer to allow the strings to slide through the tubes, resulting in maximum energy transfer and power on every shot. Graphene 360+: Combines HEAD's signature technology for stability and energy return with innovative spiralfibers that improve flexibility and feel.