The top string for power.
As its name suggests, this is a powerhouse!
Boosted to Elastyl, ultra elastic material, this string allows lightning acceleration.
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RT @ESPN3: The 2014 @usopen men's and women's singles draws are about to be revealed here » http://t.co/5rrQa9bHYW #usopen http://t.co/OV1…
21 Aug. - 15h50