Wilson Labs Project Shift 99 300g Tennis Racquets : Meet the future of modern tennis. The first concept racquet from Wlabs, the Wilson Labs Project Shift 99 300g provides players with massive spin and controllable power. Built around the insight of maximum lateral bending and best-in-class torsional stability, the Shift allows players to hit the ball consistently deep in the court with increased confidence and spin on each shot. Shift 99/300 features a 16x20 string pattern for a balance of control, spin, and power. Racquet Technology First concept racket from Wlabs Innovative bending profile built to be stable, yet laterally flexible for controllable power and spin 16x20 string pattern provides a balance between control, spin, and power First racket of its kind to experience lateral bending with minimal torsional bending Built and refined with feedback from players worldwide Patent-pending frame design to allow for an innovative, never seen bending profile Sleek arctic prism design creates clean, modern look