YONEX MUSCLE POWER SERIES TECHNOLOGY GUIDE

Yonex Muscle Power Series Badminton Racket features Isometric Frame:

The square-shaped Isometric frame shape is designed to keep vertical strings at a similar length, as well as the horizontal strings to produce an expanded sweet spot in all directions.

Yonex Muscle Power Series Badminton Racket features Muscle Power Frame:

Muscle Power locates the string on rounded archways that eliminate stress-load and fatigue through contact friction. This construction creates total unity of the string and frame through closer and tighter contact.