... fiber 3. Weight:3u 4. Stringing Lbs:24-28 Flexpro diamond series new style badminton racket: Frame: ultra high stiffness carbon ... fiber Shaft: High modulus carbon fiber Weight: 3U Stringing Lbs: 24-28LBS ... rackets, badminton rackets, and tennis, shuttlecocks; every kind of high, medium stringing machines, screen wires, strings, grips; and ...