This is the second generation of the Wilson Burn 100ULS Tennis Racquet. This updated version of the Burn 100ULS is still the lightest racquet offere in the Burn family of racquets and continues to generate power to blast shots from the baseline, but now with a design that amps up performance and looks. With a 9.8 oz strung weight and an 18x16 Spin Effect string pattern, this racquet is great for developing players looking for added power and spin to their game while still being able to control the ball with ease due to its manueverability. Recommended for beginning to intermediate level developing players looking for added power and spin. Technologies Spin Effect Technology (S.E.T.): Using fewer cross strings than main strings, this technology allows the main strings to deflect more for maximum snapback. The result is massive spin punctuated by balls that dive very sharply. This is the first racquet system that actually increases ball RPM without players needing to radically change their swing speed. Carbon Fiber Graphite: High Modulus Graphite for a firm feel and explosive power. Parallel Drilling: Provides a consistent, more forgiving stringbed response while dramatically increasing the sweetspot. Wilson X2 Ergo: A customizable handle shape creates optimal personalized feel for the modern two-handed backhand. X2 Shaft: Offers a longer handle to give two-handed backhands better feel and leverage. Also features a narrower shaft for quicker grip changes. Wilson Racquets WRT73461U