The Li-Ning 3D Break Free is used by World Champion Xu Chen. The Li-Ning is part of the `3D Break Free System Series` which adopts the innovative geometrical cross-section construction which reduces the rame drag coefficient by 10.5%. The offensive player with both power and skill can expects faster swing energy and increases in shuttle speed by 4.8% when applying the same force. 3D Break Free frame creates greater swing inert and powerful smashes The N80-II is an ideal racquet for offensive and hard-hitting players. With added weight to its racquet head using the latest Multi Polymer Carbon Fibre Reinforcing Technology, players can maximise the advantages of G Force, while optimise the gravity force to create exceptional power and speed. Through extensive research an development in Nano Science Technology.