Li-Ning Halbertec 9000 POWER As the flagship upgrade of the Halbertec series, this racket is engineered for elite players who demand a masterful balance of heavy-hitting offense and rock-solid defense. Featuring an ultra-slim 6.6mm high-modulus shaft and a head-heavy profile, it delivers explosive swing speeds paired with sharp shuttle repulsion. The specialized box-frame construction maximizes stability and impact precision, ensuring your most aggressive shots remain controlled and accurate. Weight: 3U / 4U Length: 675mm Grip Size: G5 Color: Black / Green / Silver Frame Material: Ultra High Modulus Carbon Fiber Shaft Material: Ultra High Modulus Carbon Fiber + High-density Dampening Material + Polyimide Fiber String Tension: 3U ≤ 31LBS / 4U ≤ 30LBS Feature Optimized Frame Structure: Reinforced T-joint and key stress points at 3 and 9 o'clock enhance anti-torsion performance, focusing power for precise placement and higher forgiveness. 6.6mm High-density Dampening Shaft: Integrates polyimide fibers to significantly improve shock absorption and elasticity, providing a resilient feel and ultimate control. Elastic Recovery System: Utilizes high-strength Aramid fiber within the shaft to dampen vibrations and reduce injury risk, ensuring the racket snaps back into position instantly after every strike.