The Ozone Four is an ideal choice of racquet for players looking for all-around power in an easy to play comfortable frame. With Carbon Wave Matrix Construction, Prince has re-engineered the hitting zone adding extra strength and stability for a larger, more consistent sweetspot and maximum control. The O-ports in the Ozone Series of racquets expand the conventional sweet spot by up to 54%, turning it into a sweet zone, allowing players to hit their best shots more often. Specifications: Headsize: 110” Strung Weight: 10.3 oz. Length: 27.5” String Pattern: 16X19 Strung Balance: 2 points HH Beam Width: 24-27-24 mm Tapered Beam String Tension: 55-65 lbs. Product Reviews: “The Prince Ozone Four racket is by far the best racket I have ever played with. It offers great speed, power, and comfort all in one racket. The speedport holes offers greater fluid motion than other rackets and lets your shots become faster than ever. Due to the rackets lightness it took some getting used to and my wrist hurt for about a couple weeks. I got used to it, but you might want to add some weight at the head with swing weights or lead tape. Otherwise superb racket.” - Garland, Rancho Cucamonga, CA