The single-pass grommet hole construction creates less friction between strings, this effectively reduces tension loss, while extending string life.

Different frame structures—including POWER-BOX, DIAMOND, AERO, and AERDYNAMIC—are rearranged and integrated based on computer simulation to optimize the hitting, frame characteristics, and overall performance.

Introducing brand new elastic and durable carbon fiber to further strengthen the frame with better resilience and durability.