This racket’s 66 cm length makes it perfect for junior players, age 11+. The shorter length makes it easier to control the racket’s speed and angle through contact, resulting in more effective contact with the ball (think confidence). Yonex gives this racket many of the premium technologies that are featured in its adult performance line, including Aero Fin grooves along with an Aero Trench grommet system. Taken together these features reduce wind drag for easier racket acceleration (think more power and spin). Other features include a Vibration Dampening Mesh in the handle for a smoother feel at impact. This racket also has an ISOMETRIC head shape, a time-tested feature that makes Yonex rackets more comfortable and forgiving than competing brands. This racket also comes with an open 16×18 string pattern, which supplies the needed bite for controlling the ball with spin.