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Amazon.com: S&S Worldwide Aluminum Tennis Racket. Mid-Sized 90 Square Inch Head. Modern I-Beam Aluminum Cross Section Design for Added Stiffness and Power. Adult Size, 27" L with 4-3/8" Grip. : Sports &
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String bed stiffness of a Tennis tour player frame is measured on strings – Stock Editorial Photo © Stringer_Image #93166250
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