Based on the adult version, the aluminum Radical racquet is great for beginning players to learn the fundamentals of tennis. The racquet has DAMPLUS® technology that stops vibration as the ball hits the racquet, therefore eliminating the potential for injury in growing elbow and shoulders. The 26"L racquet has a head size of 100" sq and only weighs 9 oz. Prestrung with nylon strings. Colors and graphics may vary.