HEAD Nano Ti Elite Performance Tennis Racquet (Prestrung) - SAVE!! Oversize tennis racquet Racquet structure technology at the molecular level Integrated Nano material strengthens the original Titanium Weave for a stronger, more stable racquet that delivers great power Comfort Zone Grommet System at 3, 9, and 12 o'clock of the racquet for added comfort and a larger sweetspot Weight: 9.0-oz strung