Introducing the Ultra 99 Pro! With this racket, Wilson digs into the archive, using the same mold as the popular Steam 99. Defined by its stiff and tapered beam, the Ultra 99 Pro is a study in power and stability. It also features an open 16x18 string pattern, giving you the tools to hit heavy, spin-loaded shots. Other features include a 330 swingweight, which not only helps keep the racquet steady against big hitters but also delivers impressive power to those who can leverage its mass. Technologies include Wilson's revolutionary SI3D layup technology, which helps give this powerful racket enhanced pocketing and spin. This stick also features inner hoop power grooves to increase the ability of the strings to absorb shock and transfer energy to the ball. Ultimately, this new addition to the Ultra family delivers an impressive combination of power, spin, and plow-through. Experienced players looking to overwhelm their opponents with power and spin will love this one.