The HEAD MX Spark Pro Tennis Racket will make sure that your first steps on the tennis court won't be your last. The pre-strung SPARK PRO comes in an entirely new design that takes its inspiration from a volcanic eruption and provides more power than the ELITE version.
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.