The Prince O3 Hybrid Shark Oversize makes use of O-Ports at 12:00 and 6:00 only. This still generates a lively response, but with more control than Prince’s original O3 racquets which featured O-Ports at 12:00, 3:00, 6:00, and 9:00.With a 110 square inch head size and a Prince Power Level of 1025, the O3 Hybrid Shark Oversize is a more-controlled option to the O3 Red, O3 Blue and O3 Silver. Slightly more powerful than the Prince O3 Hybrid Hornet. Nicely damped feel, with a generous sweetspot and very maneuverable at the net as well. Overall, the O3 Hybrid Shark should prove to be one of the best all-around racquets for an intermediate player with a moderate to fast swing speed.Racquet SpecificationsHeadsize:110 sq. in.Length:27.50 in.Weight (strung):10.50 oz.Stiffness (Babolat RDC):67Balance:Even BalanceCross Section:24mm/28mm/24mm Tapered BeamSwingweight:323 kg*sq. cmString Pattern:16×19Grip:Prince DuratacPrince Power Level:1025