Wilson 18x16 Blade 98S Tennis Racquet The Blade 98S adds Spin Effect Technology in an 18x16 string pattern to deliver precision spin and control for the modern, aggressive game Upgraded with Parallel Drilling to provide a consistent, more forgiving string bed response while dramatically increasing the sweet spot Braided Graphite + Basalt construction improves the flex of the racket which increases the ball's contact with the strings to provide enhanced feel and greater control The lighter weight provides faster racket speed for players on the rise Spin Effect Technology increases ball RPM without players changing their swing, the net seems lower and the court feels longer on all your shots allowing for fewer errors, more power and a bigger sweetspot with a softer string bed This racquet comes unstrung and without a cover