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

Designed by computer simulation, FREE CORE is an innovative form of handles made using nano-nylon materials and molding techniques. It allows players to move more freely, swing smoother, and gives comfort to the hand.

Using aerodynamics technology to transform traditional hexagonal frame with better airflow-directing and air-cutting performance, further achieving incredible stability and the smoothness of swings.