Head MX Spark Elite Tennis Racket | Blue Celtic Squash Club making it our fastest and

making it our fastest and most advanced racing goggle ever

and toe rubber stitching to improve durability

Adjustable strap to suit most sizes

When you connect your Polar Verity Sense to your phone or watch for your workout

Head MX Spark Elite Tennis Racket | Blue Celtic Squash Club making it our fastest andWith its energetic design and large sweetspot, the pre strung SPARK ELITE TENNIS RACQUET is perfect for new tennis players. METALLIXSpecially 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.