Designed for kids aged 4 6 who want to develop their skills and smash it like novak the head speed 21 junior tennis racket offers great levels of manoeuvrability and control with a good sized 91in2 590cm2 head and a graphite composite construction the racket ensures speedy handling and reliable performance while the use of damp technology results in decreased impact vibrations thus a better feel for a great blend of precision and control the racket uses innegra technology and comes wi