Babolat Pure Aero Junior 25 Racquet Based on the construction of the Pure Aero, the Pure Aero Junior 25 is also equipped with Aeromodular2 and FSI Spin technologies. Head Size: 100 sq. inches / 645 sq. cm Length: 25 inches / 63.5 cm Strung Weight: 9 oz. / 255 grams Balance: 1 Point Head Light / 310 mm