Aluminium. Frame with tempered steel shaft value for money racket. Best suited for recreational/ hobby head size (sq. In. ): iso. Weight (gms): 100±5. Balance (mm): 300±10. Tension (lbs): 18-20. Cover: œ cover packing each. Material: aluminium. Grip: g5, p. U. Frame dia (mm): 10, 10g weight of each racquet.