Being the lightest of the K Factor racquets the Wilson KZero has a larger headsize for a larger sweetspot that is more lenient for beginners With Wilsons K Factor technologythe K Zero provides maximum power and enhanced Kontrol combined with exceptional maneuverability and stability Our team found that this racquet gives plenty of pace on the ball from the baseline The solid frame ensures ease of swing for beginners and lifelong players alikeThe KZero also features several of K Factors revolutionary racquet technologies The Kontour Yoke for example is a new frame crosssection shape that enhances stiffness at key stress points for improved torsional stability The Kompact Center is a new shortened yoke design that improves handling maneuverability and provides additional feel Also the K Zero frame is encoded with Karophite Black an evolution of Wilsons nCode technology which utilizes a new structure incorporating additional bonds between the SiO2 and graphite molecules on a nanoscopic scale resulting in more feel and a stronger more stable racquet