Features:Explosive Power:- For players seeking power to penetrate the court.SI3D:- Optimizes three-dimensional frame bending for targeted power, spin and control. In Ultra v5, a modern power profile offers free power generation, enhanced pocketing and shot shapingImproved Spec Tolerance: - Weight, balance and swing weight measured at factory with Baiardo Tune Pro for consistent power frame to frame.Click & Go:- Easy-to-replace bumpers & grommets prolong your racket´s lifespan.Specifications:- Headsize: 100 in² / 645 cm²- Unstrung Weight: 9.9 oz / 280 g- Length: 27 in / 69 cm- Unstrung Balance: 33 cm / 4 pts HL- String Pattern: 16x19- Cross Section: 23-26-21 DTB- Grip Sizes: 1-3