Perfect for kids aged 4-6 who are looking to start playing tennis, the Head Radical 21 is an easy to swing junior tennis racket designed for fun, enjoyable and versatile game. A large sweet spot and maximum forgiveness come from its 81in2 (523cm2) head, whilst a lightweight 180g (6.3oz) frame helps children learn to hit those accurate shots. For effortless manoeuvrability, there is a head light balance, and the Radical 21 has a synthetic gut string in a 16x17 string pattern to enhance power and spin potential. The racket is made using DampPlus technology to minimise harsh vibrations. It is supplied with a head cover for protection between uses.