|Material: Ultra Hi-Modulus Graphite + PYROFIL + Nano Fortify|
|Headshape: isometric||Weight: abt. 87 g (4U)|
|Grip size: G2 = G5||Balance: HH HL|
|Stiffness: S F||Max. String Ten.: abt. 13 kg|
|String: unstrung /||Holes: 76|
|Extra: Shark Tec, Racket of KOREA, Aero Sword||Bag: fullsize thermobag|
The innovative JS series increases response time due to a combination of the Nano Fortify material (stronger than steel yet lightweight), and the new processed Zxion (liquid Crystalline Polyester fibre for effective shock reduction).