Aero Modular Technology. At 26.5 in length, this junior version of Rafael Nadal's racquet of choice, the AeroPro Drive with Cortex, offers all of the same technology and provides many of the same characteristics as it's larger counterpart. Baseliners will like the access to spin and power while enjoying good maneuverability and touch at net. This racquet is ideal for the seasoned junior player, or smaller adult player. Head Size 100 sq. in. 645 sq. cm. Length 26.5 inches 67 cm Construction 23 26 mm Composition High Modulus Graphite Unstrung Weight 8.7 ounces 245 grams Power Level Low Swing Speed Fast Balance 3 pts Head Heavy 340mm Racquet Color Black Yellow wBlue Highlights Grip Type Syntec Grip String Tension 48 55 pounds String Pattern 16 Mains 19 Crosses Mains skip 8T,8H One Piece No shared holes Strung.