Melbourne, Australia, 2015, May 9: String bed stiffness of a Tennis tour player frame is measured on strings. The measurement is used to check the qua

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Size: 4608px × 3456px
Location: 10 Strand Close, Glen Waverley, Australia
Photo credit: © STRINGER Image / Alamy / Afripics
License: Royalty Free
Model Released: No

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