Experience explosive energy with the HEAD Boom Jr. 2024 tennis racket in Black/Mint. This is the second generation of the fun and powerful racket, featuring new Auxetic 2.0 technology that actively responds to give real-time, super-accurate feedback for an enhanced, sensational feel. Based on the adult MP model, the HEAD Boom Jr. 2024 is designed for ambitious juniors aged 9 to 11 looking for serious fun. Its fresh, modern design is identical to the adult BOOM rackets and complements its explosive playability, generating a confident, powerful feel. Crafted to deliver unmatched comfort, the HEAD Boom Jr. 2024 features Auxetic constructions. Due to their internal properties, Auxetic constructions widen when a pull force is applied and contract when squeezed, ensuring a pleasant reaction with every shot. Furthermore, strategically positioned Graphene Inside strengthens the frame, providing stability to optimize energy transfer from the racket to the ball. Headsize: 645 sq cm (100 sq in), Unstrung weight: 245g (8.6 oz), String pattern: 16x19, Balance: 320mm, Length: 660 mm (26 in), Beam: 24 mm. Prestrung string: Synthetic Gut. Recommended string: Lynx 17. Key Features: Explosive power, Sensational feel with new Auxetic construction, For ambitious juniors aged 9 to 11, Fresh, modern design identical to adult BOOM rackets, Auxetic 2.0 actively responds, giving real-time, super-accurate feedback, Graphene Inside strengthens the frame, provides greater stability, and optimizes energy transfer from racket to ball. Please note that this racket will come pre-strung and without a protective head cover.