The dunlop force team 21 junior tennis racket is intended for use by budding players aged 4 6 years old or 36 4 110 122cm tall the shorter racket length and the reduced weight are designed to make it easier for them to control swings and hit the ball better the frame is strong thanks to the o beam titanium alloy used in its construction the racket is supplied with a protective head cover and strung in a 16x18 pattern