Prince AirO Hybrid Winner TI Oversized Tennis Racquets This racquet ships pre-strung This racquet includes a cover Head Size 110 sq in Weight 9.7oz/275g unstrung Balance 12.6in/32.0cm Cross Section 24mm String Pattern 16 x 19 Composition Fusionlite Alloy AirO large grommet technology at 6 o'clock for greater aerodynamics along with a raised and increased sweet spot for added power. Sweet spot expansion for maximum control and comfort. Pre-Strung Racquet