Prince AirO Hybrid Score MP Strung Tennis Racquet AirO ports at 6 & 12 oclock for enhanced sweet spot, Sweet Spot Expansion System for a quieter racquet, all packaged in a Composite Ti construction for great playing feel. Headsize: 100in Weight: 280g/9.9oz unstrung Balance: 32.3cm/12.7in Length: 27.0" Cross Section: 23mm Composition: Composite ti String Pattern: 16x19