Wilson Burn 100 Spin is a high power and performance driven racket, with parallel drilling and forgiving feel and control. Spin effect technology is the first racket system that actually increases ball rpm without players changing their swing. Parallel drilling provides a constant more forgiving string bed response while dramatically increasing the sweet spot. Benefits of spin give more height over the net increasing margin for error. The player hits harder while keeping the ball in the court and controls the ball and hit sharper angles.