HEAD is back with the Graphene 360+ Speed Pro Black Tennis Racquet. This model features a refined black cosmetic, similar to the one used on tour by Novak Djokovic. The frame features a dense 18x20 string pattern, 100 square inch head, and a flat 23 millimeter beam to provide world class control to big hitters. Spiralfibers are built into the lower sections of the head that untwist at contact for a clean and comfortable flex. Though the weight remains the same 10.9 ounces (unstrung) as the previous generation, HEAD upped the swing weight a bit with this one and the result is a more stable performance all over the court. Graphene 360 is embedded in the hoop and it provides improved ball speed and energy return all over the string bed.