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String Tension and the ERT 300 The tension of strings in tennis rackets can be measured using the ERT 300. You clip the tester to the strings of your racket, press the start button and the tension is displayed in a few seconds. It is very simple, yet accurate.
The ERT 300 is now available from Racquet Technic in Great Britain.
Please contact Racquet Technic for further information | ||||||||||||||
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March 2007 | ||||||||||||||
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