Swing with easy, comfortable power when wielding the Ultra 25 V4, a junior frame perfect for 9 to 10 year old players with serious ambitions on the tennis court. Featuring rich design and dynamic performance inspired by the adult Ultra V4 line, this racket spurs confidence with a grommet system that compresses upon impact for extra ball dwell time and responsiveness. Racket comes pre-strung with Wilson Sensation string for an appealing blend of arm-friendly comfort and playability.