Prince AirO Winner TI OS Strung Tennis Racquet AirO ports at 6 oclock for enhanced sweet spot , Triple Threat for improved stability, Sweet Spot Expansion System for a quieter racquet, all packaged in an oversized Composite Ti construction for great forgiving performance. Headsize: 110in Weight: 280g/10.0oz unstrung Balance: 32.0cm/12.6in Length: 27.0" Cross Section: 22.5mm Composition: Composite ti String Pattern: 16x19