Head MX Sonic Pro Orange, Grey Strung Tennis Racquet(4, 270 g), Grey;orange

Made of a specially designed matrix of carbon fibres and a new crystalline metal alloy. This alloy's grain-size is 1000 times smaller that that of a typical metal. The decreased grain size means increased performance, or, as the Hall -Petch effect effect states: smaller grains = stronger material. The result is a lighter, or stronger and more powerful racquet than ever before.