Made to help children learn to play with confidence and enjoy their time on the court the wilson roger federer 19 junior tennis racket is best suited to kids aged 4 5 and has a light weight 62oz for greater control over shots and a good sized 80in2 516cm2 head for easy playability this head heavy balanced racket provides added power and stability and comes strung with wilson nylon string for enhanced durability it features a 16x15 string pattern and has a full protective cover