The Li-Ning Halbertec 9000 blends cutting-edge technologies for aggressive court domination. The ACC Rifftech frame optimizes energy transfer for pinpoint smashes and drives, while HDF technology absorbs shocks and vibrations for enhanced control. A 6.6mm high modulus slim shaft provides swift maneuverability. At the same time, the 4U weight class offers optimal head speed with Dynamic Optimum Frame widening the sweet spot and 31 lbs max string tension, the Halbertec 9000 arms you with the power and precision to overwhelm opponents.