|Weight / Grip Size||3U / G5、G4 4U / G5 5U / G5、G6|
|String tension LBS||≦35 lbs ≦33 lbs ≦31 lbs|
|Frame Material||Ultra High Modulus Graphite M30J + ZXION + HARD CORED TECHNOLOGY|
|Shaft Material||Ultra High Modulus Graphite M46J + M30J + 6.4 SHAFT|
Racket Response Indicator：
TK-9900 is engineered with Energy Bow technique to reinforce the elasticity and rebound speed, creating incredible repulsion after each shot. The grommet strip design in the head levels up the downforce and improves the protection of strings. TK-9900 is an ideal racket for aggressive players.
The box-shaped design effectively increases the stability and anti-torque, can stand higher string tension.
The single-pass grommet hole construction creates less friction between strings, this effectively reduces tension loss, while extending string life.
Liquid Crystalline Polyester fiber originated and created by Japan with interwoven braided layer, quickly absorbs vibration in order to enhance outstanding elasticity and stability during the game.
Inspired by military helicopter, multi-layered structure made by carbon fiber and composites, minimize material size, reinforce handling feel and performance at a critical standard.