• MetallixTM - Specially formulated crystalline metal alloy with a grain size 1000 times smaller than that of a typical metal creates a much stronger material. The Hall-Petch Effect states: smaller grains = stronger material. The result is a lighter, stronger and more powerful racquet. • WEIGHT (UNSTRUNG): 270 g / 9.5 oz • STRING PATTERN: 16/19 • HEAD SIZE: 645 cm2 / 100 in2 • GRIP SIZE: 2 • BALANCE: 330 mm / 0.5 in HL • LENGTH: 685 mm / 27.0 in • BEAM: 22 mm