Technology of Li-Ning G-Force 350 II : Super Light, Dynamic-Optimum Frame, Aerotec-Beam System, UHB Shaft, Stabilized Torsion Angle.   Color : Black Material : Carbon Fiber Weight : 75 +/- 4 g Balance Point : 315 +/- 5 mm Flex : Medium Tension : V 20-24 lbs H 22-26 lbs  Bonus : Li-Ning AP 62 Plus Badminton Racket Cover Included